The specifications and worked examples below are based on the HORIBA LAQUA 200 Series portable conductivity meters (EC210-K, EC220-K, PC210-K and PC220-K) that Australian Scientific supplies as the authorised Australian HORIBA agent. The principles apply to any modern portable conductivity meter.

What does a portable conductivity meter measure?

A portable conductivity meter measures the ability of a water sample to carry an electrical current. This is called electrical conductivity (EC) and is expressed in microsiemens per centimetre (µS/cm) or millisiemens per centimetre (mS/cm). Conductivity is a direct physical measurement: the meter applies an AC voltage between two or more electrodes and measures the resulting current.

Total dissolved solids (TDS), salinity, and resistivity are calculated from the conductivity reading using conversion factors built into the meter. They are not independent measurements. If your TDS or salinity reading appears incorrect, it could be a setting on the meter and not a problem with the calibration.

Parameters measured by the HORIBA LAQUA EC210-K and EC220-K

Conductivity vs TDS: why the same sample gives different ppm readings

TDS is not measured directly by a portable conductivity meter. The meter measures conductivity and multiplies it by a TDS conversion factor to produce a ppm reading. The HORIBA LAQUA EC210-K and EC220-K offer four TDS calibration curves, and the curve you select changes the ppm value for the same physical sample.

TDS conversion curves on the LAQUA EC210-K and EC220-K

Two meters measuring the same glass of water can report different TDS values if they use different conversion factors. If you are comparing results with a laboratory, or reporting against a specification, agree on the scale before you start. Either report conductivity directly, or specify the TDS curve and reference temperature being used.

How to calibrate a portable conductivity meter

Calibration is performed in conductivity mode only. Because TDS and salinity are calculated from the conductivity reading, calibrating conductivity automatically re-references both. The HORIBA LAQUA EC210-K and EC220-K support automatic calibration at up to four points and manual calibration at up to five points.

Standard calibration procedure

1. Rinse the electrode in deionised water and blot dry with lint-free tissue. Do not wipe the sensing surface.
2. Pour fresh standard into a clean container to a depth of at least 3 cm. Never calibrate directly from the bottle, and never reuse standard solution.
3. Immerse the electrode at a slight angle to dislodge air bubbles from the sensing cavity. Bubbles are the single most common cause of unstable conductivity readings.
4. Wait for temperature to stabilise. Conductivity changes roughly 2% per °C. The meter’s automatic temperature compensation (ATC) handles this, but the probe and sample still need to be at the same temperature.
5. Calibrate low to high. Always start with the lowest standard (84 µS/cm) and work up to higher values (1413 µS/cm, 12.88 mS/cm, 111.8 mS/cm). This minimises carry-over contamination.
6. Rinse between standards in deionised water, not in the next standard. Rinsing in the next standard contaminates the bottle.

The HORIBA LAQUA 200 Series kits include all four standards (84 µS/cm, 1413 µS/cm, 12.88 mS/cm, and 111.8 mS/cm), covering ultra-pure water through to high-salinity samples. Replacement standards are available separately through our calibration solutions range.

How often should you calibrate a conductivity meter?

For general field work, calibrate at the start of each measurement session. For regulatory or GLP reporting, calibrate before each batch of readings and verify with a check standard at the end. Conductivity electrodes drift more slowly than pH electrodes, but drift still accumulates, particularly if the electrode is used in samples with high organic content or stored dry.

Salinity: NaCl versus Seawater curves

Salinity is calculated from conductivity using one of two curves on the LAQUA EC210-K and EC220-K:

• NaCl curve. For freshwater, brackish, industrial and agricultural samples where the ionic composition is dominated by sodium chloride. Reported in ppt or %.
• Seawater curve. For marine, estuarine and aquaculture applications. Follows the relationship used in oceanographic practice for natural seawater.

Using the wrong curve produces systematic errors. A marine aquaculture sample measured on the NaCl curve will read low compared to the true practical salinity, because natural seawater contains additional ions (magnesium, sulphate, potassium) that contribute to conductivity but are not accounted for in the pure-NaCl conversion.

Resistivity: when you need the inverse of conductivity

Resistivity is conductivity expressed the other way round. It is used almost exclusively for ultra-pure water, where the conductivity value becomes inconveniently small. Theoretically pure water has a resistivity of 18.2 MΩ·cm at 25 °C; most pharmaceutical water systems target 1 MΩ·cm or higher. The HORIBA LAQUA EC210-K and EC220-K measure resistivity up to 20.0 MΩ·cm with the supplied k=1.0 electrode.

Resistivity is the right mode for:

• Semiconductor manufacturing and electronics cleaning
• Pharmaceutical water systems (Purified Water, Water for Injection)
• Power generation boiler feedwater
• Laboratory deionised water systems

For drinking water, environmental monitoring, aquaculture and most industrial process water, conductivity (µS/cm or mS/cm) is the more practical unit.

Temperature compensation: why your readings move when they shouldn’t

Conductivity increases with temperature by roughly 1.8–2.2% per °C, depending on the solution. Every modern conductivity meter corrects for this by compensating the measured value back to a reference temperature (usually 25 °C). On the LAQUA EC210-K and EC220-K, both the reference temperature (15–30 °C, adjustable) and the temperature coefficient (0.00–10.00%/°C, adjustable) are user-configurable.

Automatic Temperature Compensation (ATC) is active by default. If your readings shift noticeably as the sample warms or cools in the container, check three things:

1. That ATC is enabled and the temperature sensor in the probe is reading correctly.
2. That the temperature coefficient matches your sample type (the default 2.00%/°C is appropriate for most natural waters; highly acidic or basic solutions behave differently).
3. That you are comparing readings at the same reference temperature. A reading compensated to 25 °C is not directly comparable to one compensated to 20 °C.

Common causes of unstable or inaccurate readings

If your portable conductivity meter is drifting, or giving suspicious readings, the cause is almost always one of the following:

• Air bubbles on the sensing surface. Immerse the probe at an angle and gently tap the side of the container to dislodge bubbles. The cavity in a cell-constant probe traps bubbles readily.
• Residue on the electrode. Nutrient salts, biological films, oil, and mineral scale all coat the sensing surface and suppress the reading. Clean with dilute nitric acid or a mild detergent rinse, then recalibrate.
• Wrong cell constant selected. The 9383-10D electrode supplied with the LAQUA 200 Series is k=1.0. The meter allows selection of 0.1, 1.0, or 10.0 cell constants for use with different electrodes. A mismatch produces readings off by an order of magnitude.
• Stale or contaminated calibration standard. Conductivity standards absorb CO₂ from the air and drift over time, particularly low-value standards (84 µS/cm). Decant fresh standard for each calibration.
• Temperature not stabilised. A probe straight out of a cold case takes several minutes to equilibrate with a warm sample.
• Comparing ppm readings across different TDS factors. Two meters reading the same sample can give different ppm values if the TDS conversion curve or factor differs. Compare conductivity (µS/cm) instead.

Applications where portable conductivity meters are the right tool

Portable conductivity meters like the HORIBA LAQUA EC210-K and EC220-K are used across a broad range of Australian industries:

• Environmental monitoring. River, lake, groundwater and estuary assessments, where conductivity acts as a broad indicator of water quality and a screening parameter for pollution events.
• Drinking water. Rapid verification of TDS at treatment plants and distribution points, supplementing fixed online analysers.
• Wastewater and industrial discharge. Conductivity monitoring against licence conditions, plus process control on evaporation, reverse osmosis and ion-exchange systems.
• Aquaculture and hatcheries. Salinity measurement using the Seawater or NaCl curve, for marine, estuarine and freshwater species.
• Agriculture and horticulture. Soil leachate, irrigation water and fertigation nutrient monitoring, reported as EC rather than TDS where possible.
• Laboratory and pharmaceutical. Verification of purified water, deionised water, and reagent-grade water using resistivity mode.

When to choose a combined conductivity and pH meter

If you routinely measure pH alongside conductivity, a combined instrument removes the need to carry two meters. Australian Scientific stocks two dual-channel models:

• LAQUA PC210-K. Combines the EC210-K conductivity module with a pH/ORP channel. Includes the 9652-10D gel-filled pH/temperature electrode.
• LAQUA PC220-K. Combines the EC220-K (with GLP data logging) with pH/ORP. Recommended where data export and audit trails are required.

For field surveys that need additional parameters (turbidity, dissolved oxygen, depth, GPS), the HORIBA U-50 Series multiparameter meters measure up to 11 parameters from a single sonde and are better suited to profiling work in rivers, lakes and bores.

Frequently asked questions

What is a good conductivity reading for drinking water?

Australian Drinking Water Guidelines do not set a numerical conductivity limit, but most treated municipal drinking water in Australia reads between 100 and 800 µS/cm. Values above approximately 1500 µS/cm generally indicate elevated mineral content and may affect taste. Conductivity is used as a rapid indicator, and any significant change from a supply’s baseline warrants investigation.

Can I use a conductivity meter to measure salt in water?

Yes, using the salinity mode. For freshwater and industrial samples, use the NaCl curve. For marine and estuarine samples, use the Seawater curve. The LAQUA EC210-K and EC220-K measure salinity from 0.0 to 100.0 ppt (0.00 to 10.00%).

What’s the difference between a conductivity meter and a TDS meter?

They are the same instrument. A TDS meter is a conductivity meter with a fixed internal conversion factor and a display that shows ppm instead of µS/cm. Professional conductivity meters like the LAQUA EC210-K let you choose the TDS conversion curve and factor, and also display conductivity, salinity and resistivity directly.

Does a conductivity meter need to be calibrated every time?

Your meter may not need to be calibrated all of the time, but it should regularly be checked against calibration standards. If it reads accurately, calibration is not required. For routine field work, calibrate at the start of each measurement session. For GLP or regulatory reporting, calibrate before each batch and verify at the end with a check standard. Conductivity electrodes are more stable than pH electrodes and do not require the same frequency of calibration, but verification is always worthwhile.

What is IP67 and why does it matter for a portable conductivity meter?

IP67 is an international ingress protection rating indicating the instrument is fully dust-tight and protected against temporary immersion in water (up to 1 metre for 30 minutes). It is the appropriate rating for field use around open water, treatment plants and industrial environments. Both the LAQUA EC210-K and EC220-K are IP67 rated. Time, wear and tear can impact this.

What accessories do I need with a new portable conductivity meter?

The HORIBA LAQUA EC210-K and EC220-K kits are supplied complete with the 9383-10D Ti/Pt conductivity electrode, four calibration standards (84 µS/cm, 1413 µS/cm, 12.88 mS/cm, 111.8 mS/cm), batteries and carrying case. Consumables to budget for separately are replacement calibration standards and, eventually, a replacement conductivity electrode. For GLP work on the EC220-K you will also need the USB cable (PN 3200779639) or the RS232 printer cable (PN 3200779638).

Should I choose the EC210-K or EC220-K?

Choose the EC210-K for routine field work where readings are recorded by hand or where on-meter storage of up to 500 data points is sufficient. Choose the EC220-K where you need GLP-compliant date/time stamping, 1,000-point logging, and PC export via USB. The EC220-K is typical for regulatory reporting, contract environmental monitoring, and any workflow that must produce an audit trail. Both meters share the same measurement hardware, electrode and accuracy specifications.

View the portable conductivity meter range

The full portable conductivity meter range, including the EC210-K, EC220-K, PC210-K and PC220-K, is available from Australian Scientific with Australian stock, 3-year meter warranty (6 months for the electrodes), and authorised HORIBA technical support. If you’re unsure which model suits your application, contact our team for advice.

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VIEW OUR RANGE OF BALANCES HERE

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From January 2026, all meters manufactured in Japan will feature a newly designed battery cover. This update has been introduced to reduce the risk of accidental battery ingestion, particularly for infants and young children.

What’s Changing?
The updated battery cover improves safety without affecting the performance or functionality of the meters. Importantly, part numbers will remain the same, as this is being introduced as a running change.

When Will You See It?
Shipments with the new battery cover began rolling out in March 2026. During this transition period, you may receive a mix of current and updated versions.

Supporting Resources
To help explain the change, a short video has been created demonstrating the new battery cover design. Simply click the link below to watch and learn more.

LAQUAtwin video: How to Insert Batteries/Sensors

If you have any questions about this update, please don’t hesitate to get in touch with our team.

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Compact Meters with Laboratory-Grade Accuracy

Need to measure pH, conductivity or specific ions in the field? HORIBA’s LAQUAtwin range brings laboratory-grade accuracy to a pocket-sized instrument — the result of over 60 years of sensor engineering.

What sets these meters apart is HORIBA’s flat sensor technology. You can measure samples from 0.1 ml to 0.3 ml or micro-volume samples as small as 0.05 mL using the supplied sampling sheet — liquids, viscous samples, damp solids, plant sap, powders and even textiles. No beakers or labware required.

The LAQUAtwin series comprises 11 models covering more than 7 water quality parameters. It’s the only pocket-type meter range that measures specific ions directly using Ion Selective Electrode (ISE) technology, which makes it genuinely useful for agriculture, food production, aquaculture, environmental monitoring and more.

How Flat Sensor Technology Works

At the heart of every LAQUAtwin meter is an ultra-thin flat sensor — a HORIBA innovation that integrates the electrode, reference system and sample interface into a chip less than 1 mm thick.

Traditional pocket meters require full immersion of a probe tip, which means larger sample volumes and difficulty testing solids or pastes. The flat sensor takes a different approach: place a few drops of sample directly onto the sensor surface and measure immediately.

Practical advantages:

• Micro-volume measurement — test liquid samples from 0.1 mL to 0.3 mL depending on the parameter, or as little as 0.05 mL using Sampling Sheet B
• No sample preparation — measure on site without transfer to labware
• Versatile sample types — liquids, viscous samples, powder samples and solid surfaces all work
• Six sampling methods — drops, immersion, scooping, wiping, pressing and sampling sheets

The integrated sample container means fewer steps and less equipment to carry.

Built for Field Conditions

LAQUAtwin meters are designed to work reliably outside the laboratory:

Specification	Detail
Water/dust resistance	IP67 rated (waterproof, dust-tight)
Operating temperature	5°C to 40°C
Humidity tolerance	Up to 85% relative humidity
Construction	ABS epoxy body with replaceable sensor
Weight	Approximately 100g
Power	2 × CR2032 batteries
Battery life	Up to 400 hours continuous use (backlight off)
Display	Custom monochrome LCD with backlight

Each meter ships in a carrying case with calibration solutions, dropper, and quick-start instructions.

The Complete LAQUAtwin Range

Australian Scientific stocks the full HORIBA LAQUAtwin lineup:

Water Quality Parameters

Model	Parameter	Range	Typical Applications
pH-11 / pH-22	pH (acidity/alkalinity)	0.00–14.00 pH	Soil testing, food processing, environmental monitoring
EC-11	Conductivity / TDS	0–19.9 mS/cm	Hydroponics, water quality, salinity screening
EC-22 / EC-33	Conductivity	0–199.9 mS/cm	Hydroponics, water quality, salinity screening
EC-33	Conductivity / TDS	0–199.9 mS/cm (TDS 0 to 9900ppm)	Hydroponics, water quality, salinity screening
Salt-11 / Salt-22	Salinity	0.0–10.0%	Food production, aquaculture, fermentation

Ion-Specific Meters

Model	Parameter	Range	Typical Applications
Na-11	Sodium (Na¹)	2 to 9900ppm (mg/L)	Food sodium content, soil analysis
K-11	Potassium (K⁺)	4 to 9900ppm (mg/L)	Plant sap testing, fertiliser management
NO3-11	Nitrate (NO₃⁻)	NO3⁻: 6 to 9900ppm (mg/L) / NO3⁻-N: 1.4 to 2200ppm (mg/L)	Agriculture, water quality, hydroponics
Ca-11	Calcium (Ca²⁺)	0.1–5.0 mmol/L	Water hardness, plant nutrition
F-11	Fluoride (F⁻)	0.1 to 990 ppm (mg/L)	Industrial wastewater, drinking water compliance

Features across the range:

• Auto-calibration that recognises standard solutions
• Automatic temperature compensation
• Auto-hold function that locks readings once stable
• Low battery indicator

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As the Australian agent for HORIBA water quality instruments, Australian Scientific offers a wide range of super-accurate testing gear designed to help professionals like yourself get the job done in the lab, in the field or in an industrial setting. In this guide we’re going to take a look at the different types of water quality meters out there and help you figure out which one is best for your testing needs.

Why Water Testing is Important

Water quality can be affected by all sorts of things like pollution, industrial waste, agricultural runoff and natural geological processes. Regularly checking key parameters to see what’s going on helps you pick up potential contaminants before they become a serious problem, makes sure you’re in line with Australian health and safety standards and keeps both human health and aquatic ecosystems safe.

The sorts of parameters you’ll be checking with a water quality meter include:

• pH levels – a measure of how acidic or alkaline the water is
• Conductivity – a measure of the dissolved ions and salts in the water
• Dissolved oxygen – vital for aquatic life
• Turbidity – a way to measure water cloudiness and see how much suspended particles there are
• ORP (Oxidation Reduction Potential) – a measure of how good the water is at fighting off bacteria and other contaminants

Types of Water Quality Meters Australian Scientific Offers

Bench Meters for Lab Use

HORIBA LAQUA benchtop meters are built for lab environments where precision is all that matters. With big, easy to read displays and touchscreen controls on select models, these instruments walk you through calibration and measurement with ease. The practical design includes an easy to clean glass top and rounded body, making them perfect for tough lab settings.

Best for: Research facilities, quality control labs, schools and water treatment plants that need lab-grade accuracy.

LAQUAtwin Pocket Meters

Taking 70 years of HORIBA know-how, the LAQUAtwin pocket meters deliver pro-quality results in a remarkably compact package. These user-friendly instruments don’t require any special training and feature an intuitive stability indicator – a friendly smile that lets you know when the results are ready. The unique electrode design means calibration and measurements only take a few drops of solution.

Available parameters: pH, ORP, conductivity, salinity, and specific ions like calcium, fluoride, nitrate, sodium, potassium and more.

Multiparameter U-50 Series

For a comprehensive water quality check-up, HORIBA’s U-50 series multiparameter meters enable you to measure multiple parameters at the same time on a single instrument. These versatile meters let you check pH, conductivity, dissolved oxygen, turbidity, ORP, salinity, depth, GPS location, specific gravity and temperature – making it easy to do environmental, aquaculture and industrial monitoring in one go.

Featuring high-quality, modular cable assembly options (available in 2m, 10m and 30m lengths), these meters make sure data collection is accurate and reliable in the field. Their robust construction and military-spec connectors also make them super reliable for harsh field conditions.

Portable Meters for Field Work

HORIBA LAQUA portable meters bridge the gap between pocket convenience and lab accuracy. Their compact, rugged design makes them a breeze to transport, while advanced data logging capabilities on select models make it easy to do on-site water quality assessments. Perfect for environmental monitoring, industrial processes and water treatment facilities where mobility is key.

Turbidity Meters

Turbidity meters measure the cloudiness in the water caused by suspended particles – a key sign of water quality. Our range from HORIBA and Apera Instruments gives you flexibility with Infrared LED light sources for ISO 7027 compliance or tungsten lamp sources for USEPA 180.1 compliance. Features like automatic self-diagnostic calibration and TruRead measurement modes ensure accurate, reliable results.

Specialised Equipment

And while standard meters are a must, we also supply:

• Oil Content Analysers (OCMA) – for quick oil-in-water analysis in environmental monitoring and process control
• Platypus Jar Testers – simulating coagulation, flocculation and sedimentation processes
• Lovibond Colorimeters & Reagents – precision measurement of water contaminants

Industries We Help

Our water quality testing solutions support professionals across a whole range of sectors:

• Water treatment facilities – monitoring drinking water and wastewater
• Environmental monitoring – checking rivers, lakes and groundwater
• Aquaculture operations – keeping conditions just right for fish and shellfish
• Industrial processes – quality control in manufacturing
• Research and education – lab testing and teaching
• Swimming pool and spa – keeping your recreational water safe to swim in

Why Choose Australian Scientific?

As the official Aussie arm for HORIBA water quality gear, we supply not just the tools of the trade – but the support that goes with them too. That includes top-notch sales help, solid technical knowhow, peace of mind that comes from our warranty, plus servicing and repairs done right – all backed up with genuine spare parts and other consumables. The idea is we’re there for you, to help you get the best from your kit as long as it’s in service.

Our Complete Range of Water Quality Gear

Getting the right meter for your needs isn’t rocket science – it’s just a matter of finding one that fits. Check out our full range of meters, probes, sensors, and all the calibration kits & consumables you’ll need. You can have a look through our Water Quality Meters page to see everything that’s available – or – drop us a line to get some expert advice on what will work best for you.

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Beakers

A true lab staple, borosilicate glass beakers are a type of container used for various laboratory tasks. They’re perfect for mixing, heating, or measuring liquids — with straight sides, a flat base, and an easy-pour spout. The flat bottom provides stability on lab benches and hot plates. Graduations on the side help with quick, accurate volume readings.

Beakers are commonly used with a hot plate for heating and mixing liquids. Available in a wide range of sizes, these beakers handle thermal shock and chemical exposure with ease, making them an essential tool for laboratories, schools, and industrial testing environments.

Burettes

If precision is your priority, glass burettes are hard to beat. Made from durable borosilicate glass, they deliver exact liquid volumes for titrations and other quantitative analyses.
The finely etched graduations and stopcock control allow smooth and accurate dispensing of liquids. Used widely in chemistry, environmental science, and pharmaceutical labs, glass burettes remain a must-have for accurate and reproducible results.

Crystallising Dishes

Our borosilicate glass crystallising dishes feature a round, flat, open surface to promote even evaporation — ideal for recrystallisation, salt formation, and studying crystal structures.
Heat-resistant, clear, and chemically stable, these dishes make it easy to observe your samples as they develop. Available in a range of sizes to suit your needs.

Culture Tubes

Simple but effective, soda-lime glass Durham tubes are widely used in microbiology for capturing gas during fermentation and other reactions. They’re tough, affordable, and resistant to most laboratory chemicals — perfect for routine work and teaching applications.

Density Bottles

Also known as pycnometers, our glass density bottles are used to measure the density or specific gravity of liquids with high accuracy.
Each bottle is made from borosilicate glass and fitted with a precision-ground stopper that includes a fine capillary opening. This allows excess liquid to escape for an exact volume measurement.
Ideal for chemistry, material science, and quality control laboratories, these bottles deliver reliable, repeatable results.

Desiccators

If you’re working with moisture-sensitive materials, a glass desiccator is essential. Made from borosilicate glass 3.3, these desiccators are designed for strength, thermal stability, and chemical resistance.
Simply add a desiccant like silica gel or calcium chloride to create a perfectly dry storage environment.
Available in both vacuum and non-vacuum models with a range of lid options (plastic knob, glass knob, or vacuum stopcock), these desiccators are ideal for sample storage, drying, and protection from humidity.
Note: desiccator plates are sold separately.

Evaporating Dishes

Our borosilicate glass evaporating dishes are designed for the efficient evaporation of solvents. Their wide, shallow shape ensures fast evaporation and even heat distribution.
Highly resistant to heat and chemicals, these dishes are perfect for solution concentration, crystallisation, and residue analysis.
Durable and reusable, they’re suitable for both research and educational settings.

Funnels

Whether you’re filtering, pouring, or separating liquids, a glass funnel ensures smooth, controlled transfer. Made from borosilicate glass, these funnels resist chemical attack and can handle hot liquids without cracking.
Available in long-stem, short-stem, and stemless designs, they’re ideal for use with filter paper or in general liquid handling. The smooth surface minimises residue build-up, while the transparent glass lets you see your transfer in real time.

Measuring Cylinders

Accuracy is key in any lab, and our glass measuring cylinders deliver just that. Made from borosilicate glass with clear, easy-to-read graduations, they provide reliable measurement and dispensing of liquids.
Available in a wide range of volumes, they’re suited for research, education, and industrial applications where precision matters.

Petri Dishes

Our soda-lime glass Petri dishes feature a round, flat, smooth surface ideal for microbial and cell culture work. The flat, smooth surface ensures even agar distribution, and the transparent glass provides excellent visibility for monitoring growth.

Reusable and autoclavable, these dishes offer a cost-effective and sustainable option for microbiology, pathology, and environmental testing laboratories.

Pipettes

When precision counts, glass pipettes are the go-to choice.

• Graduated pipettes feature measurement markings for dispensing variable volumes.
• Volumetric pipettes are calibrated for a single, fixed volume, ensuring absolute accuracy for titrations or standard solution preparation.
  Both are made from borosilicate glass, offering excellent chemical resistance, heat tolerance, and easy cleaning between uses.

Reagent Bottles

Our Schott-style borosilicate glass reagent bottles are the benchmark for secure, contamination-free storage and are available with a screw cap for secure sealing and compatibility with heat and chemicals.

They offer exceptional chemical and thermal resistance, making them perfect for chemistry, water monitoring, and analytical testing applications.

Durable, reusable, and made to withstand high temperatures, these bottles keep your samples safe, pure, and ready for analysis.

Stirring Rods

Glass stirring rods may be simple, but they’re one of the most-used items in any lab. Made from borosilicate glass, they’re durable, heat-resistant, and won’t react with your samples.
Their smooth, rounded edges prevent scratching beakers or flasks. Ideal for mixing, dissolving, and stirring solutions, these rods are essential for both educational and professional lab environments.

Test Tubes

Every laboratory needs a dependable supply of borosilicate glass test tubes. Designed to withstand heat and resist chemical corrosion, they’re suitable for heating, mixing, and sample storage.
Choose from rimmed tubes for added durability and stopper compatibility, or rimless tubes for easy pouring and sealing. Both types are available in a range of sizes to suit your experiments.

Watch Glasses

Small but incredibly versatile, borosilicate glass watch glasses are used for everything from evaporation to weighing samples and covering beakers.
Their shallow, concave shape allows for even evaporation while minimizing sample loss. They can also act as a lid to prevent splattering or contamination during heating.
Thanks to their excellent heat resistance and chemical stability, they’re suitable for high-temperature use and repeated cleaning.
Clear and durable, watch glasses are a simple yet indispensable tool found in nearly every laboratory.

Why Choose Australian Scientific?

At Australian Scientific, we know that precision equipment means better results. Our glassware range combines strength, reliability, and long-term performance, giving you the confidence to focus on your work — not your tools.

Whether you’re running a professional lab, teaching facility, or research project, you can count on Australian Scientific for trusted brands, fast delivery, and quality you can see through.

Explore our complete range of laboratory glassware and order online HERE

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Meet the HORIBA LAQUAtwin K-11 – a game-changing pocket-sized Potassium Ion Meter that lets you quickly and accurately get the info you need anywhere you go. The K-11 makes measuring potassium ions a breeze, giving you instant results with the minimum of fuss – just a few drops of sample are all you need for an efficient workflow.

Using the latest ion-selective membrane tech and HORIBA’s tried-and-tested flat sensor design, the K-11 delivers fast, reliable readings from the tiniest sample (as low as 0.3 mL, or down to 0.05 mL with the optional sampling sheet).

No need for beakers, no wasted samples – just a simple, direct measurement on the flat sensor surface – even for tough samples like solids, viscous liquids or powders.

Whether you’re a researcher, field worker, or industrial tester, this lightweight and fully waterproof pocket meter makes potassium measurement easier, faster and more versatile than ever.

What Makes it a Winner

• No messing around – direct measurement from solids, powders or drops to minimise sample waste
• Tiny sample size – as little as 0.05 mL
• Accurate results every time – up to 2 calibration points
• Super compact, fully waterproof design – IP67 rated
• Long battery life – up to an incredible 400 hours on just 2 batteries
• Replaceable sensor for extended use

Who’s it For?

• Soil and sap testing to help precision agriculture – we’ve even got you covered for potassium ion detection in agricultural samples
• Food and drink testing – Note: Only suitable for water-based samples, and won’t pick up potassium in oils. Readings can be affected by other types of ions in food and drink

Key Specifications

Seven Easy Ways to Measure with LAQUAtwin

1. Dip and Read – just stick the meter in your sample
2. Add a Drop – test as little as 0.1 mL of liquid (0.05 mL with sampling sheet); just one drop is all you need for instant measurement
3. Measure Direct – no messing about with solids – just test direct from the sample
4. Mix It Up – add pure water and test from a powder direct on the sensor
5. Sample Swab – collect your sample using a moistened sampling sheet
6. Wipe and Clean – collect tiny trace samples using a sampling sheet
7. Grab a Scoop – use the sensor guard to scoop up a water sample from a river or stream

More Parameters Available

The LAQUAtwin series doesn’t stop at potassium! Choose from 10 water quality parameters, including:

• pH
• ORP
• Conductivity
• TDS
• Sodium Na⁺
• Nitrate NO₃⁻
• Calcium Ca²⁺
• Fluoride F⁻
• Salt

All using the same reliable measurement principle trusted in laboratories worldwide.

What’s in the Box

• K-11 Potassium Ion Meter
• 150 & 2000 ppm potassium standards
• 5 x sampling sheets (B) (more sampling sheets available separately)
• 2 x CR2032 batteries
• Dropper, instruction manual, quick guide
• Handy carrying case

Accessories like the sampling sheet holder and the replacement sensor are available separately.

Important Note:

This is a serious professional-grade meter containing button batteries and is for use only in a professional or industrial setting.

The post The Pocket Potassium Ion Meter That’s Changing the Game appeared first on Australian Scientific.

Designed for professionals in safety engineering, industrial safety, environmental health, and quality control, this new series of meters is perfect for use in a wide variety of environments, including factories, construction sites, schools, offices, traffic management, households, and more.

New Environmental Meter Range Includes:

• Wind Speed Meter with Temperature & Humidity Measurement

• Sound Level Meter with Temperature & Humidity Measurement

• Light Meter with Temperature & Humidity Measurement

• 5-in-1 Environmental Meter measuring Wind Speed, Sound, Light, Temperature, and Humidity

Each instrument in the range is built for durability, precision, and ease of use, and comes supplied with a calibration certificate and a protective pouch for fieldwork.

? Wind Speed Meter with Temperature & Humidity Measurement

Key Features:

• Measures air velocity, air volume, temperature, and humidity

• Large LCD with green/yellow/red visual indicators

• Max/Min/AVG readings and data hold

• Audible alarm, auto power-off, and low battery alert

? Sound Level Meter with Temperature & Humidity Measurement

Key Features:

• Monitors sound levels along with temperature and humidity

• A/C frequency weighting for flexible measurements

• FAST/SLOW response time settings

• Clear visual sound level indicators and audible alerts

? Light Meter with Temperature & Humidity Measurement

Key Features:

• Measures light intensity, temperature, and humidity

• User-selectable Lux/Fc units

• Visual level indicators and audible/visual alarms

• Data hold, Max/Min/AVG readings, and auto shut-off

? 5-in-1 Environmental Meter

All-in-one tool measuring:

• Wind speed

• Sound level

• Light

• Temperature

• Humidity

Key Features:

• Large colour-coded LCD display

• Data hold, Max/Min/AVG functions

• Audible alarm, auto shut-off, and battery status indicator

? About Brannan

Founded in 1913 by Sydney Brannan, Brannan is a renowned British manufacturer known for precision thermometers and environmental measuring instruments. With over a century of experience, Brannan supplies a broad product range across sectors including industrial, scientific, catering, medical, and home & garden.

With one of the UK’s most advanced commercial temperature and pressure calibration labs, Brannan continues to lead through innovation, quality, and sustainability.

Proudly Supplied by Australian Scientific

At HORIBA Australia Pty Ltd, we’re committed to bringing world-class instruments to Australian professionals. Brannan’s latest environmental meters are now available through our store—designed for reliability, backed by science, and trusted around the world.

Contact us today for current lead times: sales@au.horiba.com

The post Brannan’s New Range of Heavy-Duty Environmental Meters appeared first on Australian Scientific.

HORIBA Australia Pty Ltd: Your Source for HORIBA U-50 Series Multi-Parameter Meters in Australia

Water Quality

Water quality is a critical parameter that affects not only human health but also industrial processes and the environment. Safe drinking water and optimal conditions for various applications require precise monitoring and analysis. That’s where a water quality meter comes in.

A good water quality meter allows you to measure many parameters – pH, conductivity, salinity, dissolved oxygen, turbidity, temperature, and TDS – to get accurate readings every time. These parameters are essential for assessing water safety and suitability for drinking, industrial use and environmental monitoring.

Regular monitoring and calibration of your water quality meter is crucial for home, business and industry owners. Accurate calibration ensures the data you collect is reliable and meets regulatory standards, and prevents health risks. Whether you’re in the field or lab, choosing the right equipment is key: waterproof meters are perfect for rugged field applications, benchtop meters are for precise lab analysis.

Modern water quality meters are user-friendly and versatile, with optional sensors, software for advanced data analysis and a range of accessories to suit your needs.

Investing in a robust and accurate water quality meter is essential for anyone who wants to ensure the safety and quality of their water. With the right equipment, you can monitor, analyse and maintain water quality across various applications.

When precision meets reliability in the field, the HORIBA U-50 Series delivers.

At HORIBA Australia Pty Ltd, we are the official Australian Agent for HORIBA water quality products, including the U-50 Series multi-parameter meters – the benchmark for environmental monitoring, groundwater testing and river water assessment.

Among the range, the U-52 and U-52G models – with 2 metre and 10 metre cable options – are the most popular and frequently stocked units, trusted by researchers, environmental agencies, water authorities, mining and agriculture sectors and water quality professionals across the country.

Introducing the HORIBA U-50 Series – The Multi-Parameter Meter

The Multi Checker U-50 series is a water quality assessment instrument for on-site field testing. This portable and rugged device integrates multiple sensors, for precise measurements into one probe, allowing simultaneous measurement of up to 11 parameters in real-time.

These multi-parameter meters are ideal for monitoring and analysing water quality in rivers, lakes, estuaries, groundwater, wastewater application and more.

Measured Parameters:

• pH
• Dissolved Oxygen (DO)
• Turbidity
• Conductivity
• Salinity
• Total Dissolved Solids (TDS)
• Seawater Specific Gravity
• Oxidation-Reduction Potential (ORP)
• Temperature
• Water Depth (U-52G only)
• GPS Location (U-52G only)

Service and Support

At HORIBA Australia Pty Ltd, we don’t just sell the product—we stand behind it. As the official Australian Agent for HORIBA water quality products, we offer full after-sales service, including:

• Warranty Support
• Calibration Services
• Technical Troubleshooting & Phone Support
• Spare Parts Supply
• Routine Maintenance Guidelines
• Quick Turnaround Times

Our experienced service and technical team are trained in HORIBA instrumentation and understand the complexities of water quality testing in Australian environments. Whether it’s a technical query, calibration requirement or maintenance support, our team is here to help.

HORIBA U-52 and U-52G: What’s in the Box?

HORIBA U-52 (2 or 10 metre cable)

• Measures: pH, DO, Turbidity, Conductivity, Salinity, TDS, Seawater SG, ORP & Temp
• Full kit with all sensors and backpack carry bag
• Excludes water depth and GPS

HORIBA U-52G (2 or 10 metre cable)

• Includes everything the U-52 offers, PLUS:
  • Water Depth & GPS
• Full field kit with all sensors and rugged backpack-style carry bag

At a Glance:

• Large, backlit LCD display
• One-hand operation
• Quick-connect cable
• Shock-resistant cover
• 10,000 data set memory with site name, date/time stamp
• USB connectivity
• Chemical-resistant materials
• Field-replaceable sensors and easy maintenance
• ToupH pH electrode option
• Low-maintenance DO sensor with screw-on membrane cap
• Display of the latest calibration data

Measuring Dissolved Oxygen with the HORIBA U-50 Series

Dissolved oxygen is a critical parameter in water quality analysis, affecting everything from aquatic life to water treatment processes. The HORIBA U-50 Series is a highly accurate and reliable water quality meter that measures dissolved oxygen along with 10 other parameters, including pH, conductivity, salinity, turbidity and resistivity.

Designed for versatility, the HORIBA U-50 Series is suitable for laboratory, field and industrial use. Its waterproof construction ensures durability in harsh environments, and the user-friendly interface makes it easy to use even for those new to water quality monitoring. The meter’s advanced sensors and optional accessories – including specialised cables and software – make data collection, management and analysis easy. Store and review results with ease.

With data logging, alarm functions and multiple measurement units, the HORIBA U-50 Series provides real-time measurements you can trust. Measuring multiple parameters in one device makes it a complete solution for anyone who needs to ensure water quality – whether for drinking water safety, industrial compliance or environmental stewardship.

Invest in the HORIBA U-50 Series and get a meter designed for accuracy, reliability and ease of use. Browse the features and applications to see how this water quality meter can support your monitoring needs. Order now and start ensuring safe water for all your applications.

Applications – From Marshes to Mines

Marshes and Rivers:

The IP67 waterproof design means you can take measurements in wetlands, estuaries and flowing water without worrying about splashes or on the control unit.

Groundwater:

The long cable options (up to 10m) allow easy measurement from bores and wells. Data can be logged on site and transferred to a PC later for detailed analysis – perfect for long-term groundwater monitoring programs.

Long-Term Care and Maintenance Support

We know how important ongoing performance is for field instrumentation. That’s why we provide:

• User guides and cheat sheets to simplify calibration and troubleshooting
• Service reminders to ensure performance longevity
• Calibration help by phone/email
• Tips for optimal performance – sensor cleaning and storage advice

We break down the maintenance process into simple, easy steps to maximise instrument life and measurement accuracy.

Why Choose the HORIBA U-50 Series from Australian Scientific?

• Authorised Australian Agent for all HORIBA water quality instruments
• Local team trained in calibration, repair and user support
• Fast delivery on popular models (U-52 and U-52G, 2m & 10m)
• Live support phone, email and website chat
• Comprehensive support for environmental monitoring professionals
• Access to genuine spare parts & consumables

Order or Enquire Now

Contact Australian Scientific today to discuss your water monitoring needs or order the HORIBA U-52 or U-52G multi-parameter water quality through our websites.

? Email: sales@au.horiba.com
? Phone: +61 (0)2 4956 2299

With Australian Scientific and HORIBA, you’re not just buying a meter – you’re getting a reliable partner in water quality monitoring.

The post Multiparameter Environmental Water Monitoring Meters appeared first on Australian Scientific.

OHAUS has engineered a range of laboratory hot plates, hot plate stirrers, and magnetic stirrers to meet various laboratory needs. From basic educational to advanced research environments, these precision instruments deliver the performance, safety and durability that professionals demand.

What are Laboratory Hotplates and Stirrers

Laboratory hotplates provide controlled, uniform heating for chemical reactions, sample preparation and general laboratory applications. Unlike standard heating devices, laboratory hot plates offer precise temperature control and even heat distribution across the entire top surface.

A hotplate stirrer is a laboratory device that combines both heating and magnetic stirring functions, with a top plate for sample placement and a dedicated speed control for precise stirring. This dual functionality ensures temperature distribution and sample mixing – critical for reactions that require both heat and agitation.

A magnetic stirrer operates without heat, using rotating magnetic fields to spin stir bars in solutions. This gentle agitation method works with everything from delicate biological samples to viscous chemical mixtures, providing contamination-free mixing without introducing external heating elements.

Hotplate stirrers are general laboratory instruments, easy to operate and clean, so suitable for many applications.

Some models have a ceramic top, which is durable and easy to clean after use.

The control panel has all the user needs, mains switch, temperature adjustment and speed control, for ergonomic design for easy and safe operation.

Heating water is a common application for these devices, such as boiling water for dissolving buffers or preparing media.

Different models are available, and models have different top plate materials or sizes to suit laboratory needs.

OHAUS Guardian Series: Two Tiers of Performance

Guardian 2000 Series: Practical and Affordable Performance

The Guardian 2000 series is OHAUS’s commitment to providing laboratory equipment at affordable price points. These instruments are designed for educational laboratories and routine applications where reliability and ease of use are key.

Features:

• Fast, reliable heating and stirring up to 15 litres
• Simple knob controls for easy operation
• Robust construction for daily use
• Built-in support rod holder for extra versatility
• PTFE-coated stir bars are included with stirring models
• Hot top indicator light for safety

The simple design makes Guardian 2000 instruments perfect for teaching labs where students need to focus on experimental procedures rather than complex equipment operation. The chemical-resistant housing is easy to clean and withstands frequent use; the support rod holder can hold additional laboratory accessories as needed.

Guardian 7000 Series: Performance and Safety Redefined

For labs that require advanced performance and extra safety features, the Guardian 7000 series delivers professional-grade performance. These instruments have sophisticated design elements that protect equipment and users while giving precise control over experimental parameters.

Features:

• SmartHousing™ design with chemical resistance
• Spill channelling system to protect internal components
• Bright, backlit LCD display
• Temperature, speed and time controls
• Visual status indicators for across-the-lab monitoring
• Enhanced safety protocols for demanding environments

SmartHousing™ is a major advancement in laboratory safety design. By channelling spills away from critical internal components, this feature protects the instrument’s longevity while reducing maintenance and potential safety hazards.

Heating-Only Solutions

OHAUS Guardian 2000 Hotplates

For applications where heat only is required, the Guardian 2000 hotplate series provides focused heating. These are ideal for educational labs and general laboratory environments where temperature control is the main requirement.

Available in three plate sizes, these hotplates accommodate different vessel sizes and experimental needs. The simple knob controls allow users to adjust temperature quickly and accurately, making them suitable for experienced researchers and students learning laboratory techniques.

The built-in support rod holder adds versatility to experimental setups, allowing users to secure additional equipment or accessories as needed. This thoughtful design feature maximises bench space while keeping experimental options open.

Magnetic Stirring Solutions

OHAUS Guardian 2000 Magnetic Stirrers

When experiments require mixing without heating, OHAUS magnetic stirrers provide reliable stirring up to 15 litres. These are perfect for temperature-sensitive reactions or procedures where external heat could compromise sample integrity. The magnetic stirring mechanism operates smoothly and quietly, with minimal laboratory noise, while providing consistent mixing action. PTFE-coated stir bars resist chemical attack and provide smooth rotation, efficient mixing across a wide range of solution viscosities.

Like other Guardian 2000 series instruments, these stirrers have durable, chemical-resistant housing that withstands daily laboratory use. The built-in support rod holder is consistent with other series components, allowing for integrated experimental setups.

Applications Across Laboratory Settings

Educational Laboratories

Teaching labs benefit from Guardian 2000 series reliability and simplicity. Students can focus on learning fundamental techniques without struggling with complex equipment interfaces. The simple controls and safety features give instructors confidence that the equipment will perform consistently across multiple class sections.

Research Environments

Advanced research applications require the extra capabilities of the Guardian 7000 series. The precise temperature control and advanced safety features support complex experimental protocols where variables must be controlled and monitored.

Industrial Quality Control

Industrial labs performing routine testing and quality control find Guardian series instruments provide the reliability for consistent results. The robust construction withstands frequent use while maintaining calibration accuracy over extended periods.

Safety Features and Design Considerations

Laboratory safety is the top priority in OHAUS instrument design. Hot top indicator lights give immediate visual confirmation of heating element status, preventing accidental contact with heated surfaces. The chemical-resistant housing materials protect against common laboratory chemicals while maintaining structural integrity.

SmartHousing™ in Guardian 7000 series instruments takes safety further by channelling spills away from internal components. This proactive approach reduces equipment damage risk while protecting users from chemical exposure.

Choosing the Right Solution

Selecting the right laboratory heating and stirring equipment depends on several factors, including application requirements, safety needs and budget. Educational labs benefit from Guardian 2000 series simplicity and affordability; research labs may require Guardian 7000 series advanced features.

Consider volume requirements when choosing plate sizes and stirring capacities. Applications that require larger volumes benefit from instruments designed to handle up to 15 litres. Chemical compatibility also matters for applications involving aggressive solvents or extreme pH conditions.

Your Next Step in Laboratory Excellence

OHAUS hotplates and stirrers are proven solutions for laboratory heating and mixing challenges. Whether you need basic heating functionality, advanced stirring capabilities or integrated heating and mixing performance, the Guardian series has options for your needs.

Reliable performance, safety features and affordable price, OHAUS instruments are a great addition to any lab. From student training to advanced research applications, these instruments deliver the consistency and durability you need for successful lab operations.

Ready to get started? Browse our full range of OHAUS hotplates and stirrers online today. Specs, prices and expert support to help you make the right choice for your lab.

The post OHAUS Hotplates and Stirrers: Complete Laboratory Solutions appeared first on Australian Scientific.

RSM7DC: Compact, Customizable, and Quiet Operation

The RSM7DC Rotary Tube Mixer with Disc is a lab tech’s dream for small to medium-scale sample handling. Designed for precision and adaptability, the RSM7DC features:

• Variable speed control from 10 to 60 RPM

• Fully adjustable disc angle – from horizontal to vertical

• Quiet operation, ideal for shared lab environments

• Customisable discs, allowing tailored solutions for your specific tube sizes

• Accommodates small to medium tubes and bottles

The RSM7DC shines in biological and clinical settings, with its end-over-end motion perfect for suspending blood samples, aerating cultures, or general-purpose mixing. Unique to its design, users can load and unload samples mid-operation thanks to its easy-to-stop disc and removable locking screw. For heavier, off-balance loads, a central locking screw adds extra stability.

Key Specs:

•  Power: 12VDC

• Dimensions: H415 x D255 x W300 mm

• Weight: 5 kg (with disc)

• Supplied with 20 threaded inserts and custom-fit clips

If you need a quiet, versatile mixer with customizable capacity, the RSM7DC fits the bill—and your benchtop.

RM4: Heavy-Duty Precision with Intelligent Control

Stepping up in size and control capability, the RM4 Medium Rotary Mixer is engineered for larger capacity and programmable precision. Ideal for research environments that demand repeatability and automation, the RM4 includes:

• End-over-end mixing with a smooth microprocessor-controlled drive

• Three user-defined preset programs for automated routines

• Ultra-quiet brushless AC motor for silent, long-term operation

• Interchangeable clamp system for bottles, flasks, and test tubes up to 250mm long

• Digital display with optical speed feedback and timer control (0–99 minutes or hours)

The RM4 is a versatile solution for clinical testing, molecular biology, and biochemistry labs. It supports up to 4 kg of evenly loaded materials and boasts a range of safety features, including a motion-interrupt cut-off for added lab protection.

Key Specs:

• Power: 240VAC / 130 watts

• Speed range: 6–57 RPM

• Mixer control: Solid-state with optical feedback

• Dimensions: W455 x D400 x H335 mm

With its programmable memory and broad clamp options—including 3-prong and spring clip adapters—the RM4 is the go-to choice for labs managing multiple mixing protocols or handling a diverse array of container types.

Which Mixer is Right for You?

• Choose the RSM7DC if your lab needs a compact, versatile, and quiet mixer for light to moderate workloads, especially involving tubes and small bottles.

• Opt for the RM4 if you’re dealing with heavier samples, need programmability, or require the flexibility to accommodate a wide range of container sizes with precise, automated control.

Both mixers are designed with user convenience in mind and can be customized to suit unique lab applications. Whether you’re running standard blood tests or complex molecular assays, these two new rotary mixers offer reliable performance to keep your lab moving—literally.

The post Bench-Top Mixers: Introducing the RSM7DC and RM4 Rotary Mixers appeared first on Australian Scientific.

DPD No. 1 – Free Chlorine

Free chlorine is the active form of chlorine responsible for disinfecting water. DPD No. 1 tablets provide a simple and effective way to measure free chlorine levels in pools, spas, and drinking water systems. Regular testing ensures water is safe for swimmers and complies with regulatory standards.

DPD No. 3 – Total Chlorine

While free chlorine shows immediate sanitising power, total chlorine testing gives the complete picture by measuring both free chlorine and combined chlorine (chloramines). By using DPD No. 3 tablets alongside DPD No. 1, operators can easily calculate chloramine levels – a vital step for maintaining healthy, odour-free water.

Phenol Red Tablets – pH Testing

pH balance is crucial for water quality. If pH is too low, water becomes acidic and corrosive; if too high, it can reduce chlorine’s effectiveness and cause scaling. Phenol Red tablets are the go-to reagent for pH measurement, delivering quick and accurate results to keep water balanced and safe.

Alka-M Tablets – Total Alkalinity

Total alkalinity acts as a buffer, helping stabilise pH levels and preventing sudden fluctuations. Alka-M tablets make it easy to monitor and adjust alkalinity in pools, spas, and industrial water systems. Proper alkalinity levels also protect equipment and improve the efficiency of sanitising agents.

CYA – Cyanuric Acid

Often called a stabiliser or conditioner, cyanuric acid protects chlorine from rapid breakdown under UV sunlight. Testing CYA levels with our tablets ensures that chlorine remains effective without over-stabilising the water, which can make sanitation less efficient.

Why Choose Our Reagents?

Our reagent tablets are manufactured to the highest standards, with consistency and reliability at the core. They’re compact, easy to use, and perfect for field or laboratory applications. Whether you’re a pool operator, water treatment professional, or laboratory technician, these reagents make water quality testing simple, accurate, and dependable.

Explore our full range of reagents here and keep your testing program running smoothly.

Need an Electronic Pool Tester? Check out the Scuba 3 Pool Tester Here

The post Essential Reagents for Accurate Water Testing appeared first on Australian Scientific.

• WQ310-K – Single Channel Meter

• WQ320-K – Dual Channel Meter

• WQ330-K – Triple Channel Meter

These portable multiparameter meters are designed to make water quality testing easier, whether you’re in the field or the lab.

Smart Electrodes with Built-in Data Storage

What sets the HORIBA WQ300 multiparameter water quality meters apart is the intelligent sensor system. Instead of assigning fixed ports for specific electrodes, these meters allow you to plug any parameter electrode into any port.

This is possible because the sensor itself stores the critical data:

• Electrode information (type, ID, and specifications)

• Calibration history

• Measurement setup

When you connect an electrode, the meter automatically recognizes it using Automatic Sensor Recognition (ASR). The calibration data and settings instantly appear on the screen, so you’re ready to start testing straight away—no need to recalibrate every time you swap electrodes.

Flexible Electrode Kits

Electrode kits for the WQ300 are sold separately, allowing you to build the setup that fits your needs. Options include:

• pH electrode kit

• Conductivity (EC) electrode kit

• Dissolved Oxygen (DO) electrode kit

• ORP electrode kit

Each kit comes complete with:

• A sensor cartridge

• Sensor head

• Calibration solutions

Kits are available with 2m or 5m cables, making them ideal for both laboratory testing and field sampling.

Why the HORIBA WQ300 Series is a Game-Changer

For water quality professionals, the benefits are clear:

• Smart calibration memory – Move electrodes between meters without losing accuracy.

• Port flexibility – Any electrode fits into any port, reducing setup errors.

• Expandable design – Choose single, dual, or triple-channel models depending on your application.

From environmental monitoring to industrial water testing, the HORIBA WQ300 multiparameter water quality meter range delivers accurate results with unmatched convenience.

Explore the HORIBA WQ300 series today and discover how smart sensor technology can simplify your water testing.

The post HORIBA WQ300 Multiparameter Meters – More Flexible Water Testing appeared first on Australian Scientific.

One essential piece of safety gear is the Combination Bench Mounted Aerated Eye Wash and Hand Held Drench Hose, like the Speakman SE-927. Designed for both the eyes and body, this versatile unit provides fast, effective flushing when accidents happen.

Quick Relief When You Need It Most

The SE-927 is built with emergencies in mind. It combines twin aerated spray heads that gently but effectively rinse contaminants from the eyes with a 1.8m (6-foot) flexible drench hose for targeted body flushing.

What makes it especially user-friendly is its stay-open activation valve—once you squeeze the handle to start the flow, the water keeps running hands-free until you’re ready to shut it off. This lets users focus on rinsing, not fiddling with controls.

Built to Meet Safety Standards

When it comes to safety, compliance matters. The SE-927 is manufactured to Australian Standard AS 4775-2007 and is also ANSI/ISEA Z358.1 compliant, so you can trust it meets rigorous performance benchmarks.

Some key specs include:

• Eye wash: Dual aerated streams with a flow rate of 12 LPM

• Valve: Durable 10mm chrome-plated brass

• Hose length: 1.8m flexible hose for easy reach

• Operation: Squeeze-handle activation with hands-free “stay-open” function

Easy to Install & Operate

Installing the SE-927 is straightforward and designed to suit most lab setups. With a simple bench-top mounting (maximum thickness of 57mm), water connection, and a quick flush to clear impurities, the unit is ready for use.

Operation is just as simple—squeeze the handle to activate, release to turn off. The hands-free option ensures continuous water flow for as long as needed.

Maintenance Keeps It Reliable

Like all safety equipment, regular checks are crucial. The SE-927 comes with a testing tag, making it easy to track inspections:

• Weekly: Flush the line for 30 seconds, check for clean, even water flow.

• Yearly: Verify full compliance with AS 4775-2007.

By keeping up with this schedule, you can be confident the unit will perform when it matters most.

The Bottom Line

In any environment where chemicals or contaminants are present, every second counts during an emergency. The Speakman SE-927 Bench Mounted Eye Wash and Drench Hose provides quick, effective flushing for both eyes and body, helping reduce injury and improving workplace safety.

It’s not just a piece of lab equipment—it’s an investment in peace of mind.

The post Safety First: Combination Bench Mounted Aerated Eye Wash & Drench Hose appeared first on Australian Scientific.

What makes Parafilm so useful?

The secret is in its stretch. Parafilm can expand up to 200% of its original size, meaning it hugs vessels of all shapes and sizes—even the awkward ones. This flexibility means you don’t always need stoppers, lids, or caps, saving time and reducing waste. Plus, it’s transparent enough that you can still see your sample clearly underneath.

It’s not just for lab work, either. Parafilm can also be used around food, as long as it’s below 55 °C and local regulations are followed. In fact, it complies with US FDA standards and is produced in line with Good Manufacturing Practice (GMP).

Stand-out features of Parafilm

Here are some of the qualities that make Parafilm a lab essential:

• Safe to use: non-toxic and easy to handle

• Flexible in conditions: works continuously between –45 °C and +50 °C

• Durable: stretches 200% and elongates 300% before tearing

• Protective: resists oxygen, carbon dioxide, and water vapour, helping to keep samples stable

• Long-lasting: stores well for up to 3 years if kept between 7 °C and 32 °C at 50% humidity

Resistant where it counts

Parafilm also holds up against many chemicals for up to 48 hours, including common acids like hydrochloric and sulphuric acid, alkaline solutions like sodium hydroxide, and solvents like ethanol and methanol. However, it doesn’t mix well with certain organic solvents such as chloroform, benzene, or toluene.

Why it’s a lab staple

In short, Parafilm laboratory film is one of those quiet heroes of the lab. It’s stretchy, reliable, and protective—keeping your samples safe while making your work a little easier. From sealing culture tubes to preventing spills, it’s no wonder Parafilm has become a global favourite.

The post Why Every Lab Loves Parafilm Laboratory Film appeared first on Australian Scientific.