HORIBA LAQUAtwin Sodium Ion Meter

HORIBA LAQUAtwin Sodium Ion Meter


Only compact meter for a quick and reliable measurement of sodium ion at the scene using ion selective membrane.

Applications include: Health management; food quality control; environmental measurement; salt water damage testing.

Accessories included:

  • 2 CR2032 batteries
  • 1 Pipette, Instruction manual
  • Quick manual
  • Storage case
  • 2 x 14 mL Standard solutions (high & low)
  • 5 pieces of sampling sheet B
Measurement principle Ion electrode method
Minimum sample volume 0.3 mL (0.05 mL with sampling sheet B)
Measurement range 23 to 2300 ppm (mg/L)
(10-3 to 10-1 mol/L)
Resolution • 0 to 1.0 ppm: 0.1 ppm
• 0 to 99 ppm: 1 ppm
• 100 to 990 ppm: 10 ppm
• 1000 to 9900 ppm: 100 ppm
Calibration Two point
Accuracy ±10% of reading value
Compensation setting Multiplication (0.01 to 9.90) or Known Factor (-1000 to 1000)
Functions Auto range change • Temperature compensation • IP67 Water/Dust proof • Auto Hold • Automatic power off (15 minutes)
Display Custom (monochrome) digital LCD
Operating temperature/ humidity 5 to 40°C, 85% or less in relative humidity (no condensation)
Power CR2032 batteries (x2)
Battery life Approx. 400 hours in continuous use
Main Material ABS epoxy
Dimensions / Mass 164 mm x 29 mm x 20 mm (excluding projections)/Approx. 50 g (meter only, without batteries, EC meters approx. 45 g)


Drop a sample with a pipette; small volumes as 0.1 mL can be measured. Using sampling sheet B, volumes down to 0.05 mL can be tested.


When you're in the lab, you can test the sample in a beaker. Ensure the sensor guard sliding cap is open.


Use as a scoop to test water from a river. Vertical scoop is available with a unique sensor guard.


The sampling sheet allows tiny, trace volumes to be analysed. For example, wipe off the surface of the skin with a sampling sheet soaked with pure water and measure.

Solid samples

Foods containing some moisture can be tested by placing a small piece directly onto the sensor.


LAQUAtwin meters can also test dry powders. Simply place the powder sample onto the sensor, and add an appropriate amount of pure water.

Paper, textiles and films

To test sheets of paper and textiles, cut up the sample into small pieces and place them directly onto the sensor then add a defined amount of pure water.