HORIBA’s Handheld Meters – Compact, Spot-On & Ready to Hit the Field
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
| Feature | Description |
|---|---|
| Model | K-11 |
| Measurement Principle | Ion Selective Electrode |
| Range | 4–9900 ppm (0.1–250 mmol/L) |
| Accuracy | ±10% of actual value |
| Sample Volume | 0.3 mL (0.05 mL with sampling sheet B) |
| Temperature Range | 5–40 °C |
| Power | 2 × CR2032 batteries (approx. 400 hours continuous use) |
| Protection | IP67 dust & waterproof |
| Dimensions | 164 × 29 × 20 mm (approx. 55 g) |
Seven Easy Ways to Measure with LAQUAtwin
- Dip and Read – just stick the meter in your sample
- 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
- Measure Direct – no messing about with solids – just test direct from the sample
- Mix It Up – add pure water and test from a powder direct on the sensor
- Sample Swab – collect your sample using a moistened sampling sheet
- Wipe and Clean – collect tiny trace samples using a sampling sheet
- 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:
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.