Horiba LAQUAtwin EC Meters
The line of conductivity meters of LAQUAtwin gives you the possibility to measure EC in water or water based samples.With a tiny drop of sample you can make measurements for your research. These meters are of laboratory quality and can be used for an array of purposes in the horticulture or agricultrue and in food and soil sampling.
Note. These meters will be replaced with new models, which will become available in March 2026. Availibility is based on existing stock. Please contact us for more info.
The LAQUAtwin EC-11 and EC-22 Meter are not available anymore.
The new meters are now available. Please choose the 4EC-11, 4EC-22 or 4EC-33 for these new models. Or you can choose the EC-22 or EC-33 against reduced prices.
Choose your model
You can choose out of three new models: 4EC-11, 4EC-22 of 4EC-33 or the EC-22 or EC-33. Please take a look at the specifiactions to determine which model suits your pruposes.
Each meter is supplied with 1.41 mS/cm & 12.88mS/cm conductivity standards (14ml each), conditioning solution (4ml), 2 x CR2032 batteries, dropper, instruction and quick manuals .
Specifications
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Model
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(4)EC-11
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(4)EC-22
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(4)EC-33
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Measurement Principle
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4 Electrode Bipolar AC (2 for EC-11, EC-22 and EC-33)
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Minimum Sample Volume
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0.12ml
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Conductivity Range & Resolution
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0 to 199 µS/cm: 1µS/cm
200 to 1999 µS/cm: 1µS/cm
2.00 to 19.99 mS/cm: 0.01 mS/cm
20.00 to 199.9 mS/cm: 0.1 mS/cm
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TDS Range & Resolution
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0.0 to 99.9 ppm: 0.1 ppm
100 to 999 ppm: 1 ppm
1000 to 9990 ppm: 10 ppm
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TDS Curves
TDS Factor (0.4 - 1.0), EN 27888, 442, NaCl
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Conductivity Calibration Points
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Up to 2 (up to 3 for 4EC-11)
Up to 3 (up to 4 for 4EC-22 and 4EC-33)
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Accuracy
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±2% full scale (for each range)
±2% full scale (0 to 19.99 mS/cm)
±5% full scale (20.0 to 199.9 mS/cm)
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Temperature Display
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0 to 50.0 °C
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Temperature Calibration
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5 to 40.0 ºC
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Display
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Custom (monochrome) LCD with backlight
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Operating Temperature
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5 to 40°C
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Operating Humidity
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85% or less relative humidity (no condensation)
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Power
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CR2032 batteries (2)
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Battery Life
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Approx. 400 hours in continuous use (without backlight)
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Dimensions
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164 × 29 × 20mm (excluding projections)
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Mass
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Approx. 55 g (including sensor and batteries)
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Functions
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- Auto Range
- Auto Calibration
- Auto Standard Recognition
- Auto Temperature Compensation (2%/°C fixed)
- Temperature Calibration (only for (4)EC-22 & (4)EC-33)
- Auto Stable / Auto Hold Measurement
- Auto Power Off (30mins)
- Switchable Backlight
- Low Battery Indicator
- IP67 Dust / Waterproof
- Replaceable Sensor
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