Horiba LAQUA Na+ Sodium Ion Meter (B-722)
Horiba LAQUA Na+ Sodium Ion Meter (B-722)
Horiba LAQUA Na+ Sodium Ion Meter (B-722)
Horiba LAQUA Na+ Sodium Ion Meter (B-722)

Horiba LAQUA Na+ Sodium Ion Meter (B-722)

SKU: B-722
Product Weight 2.00 Pounds
This sodium ion meter can measure samples as small as 0.3mL and can be used in the field or the lab. It has an ion selective sensor that disregards pH and most other ions.
Sales price $344.99
Additional Calibration Solutions
Replacement Sensor

Horiba LAQUA Na+ Sodium Ion Meter (B-722)

Main FeaturesB-722-s

  • The measurement process simply involves placing the sample on the meter's flat sensor
  • Accurate measurements can be taken from samples as small as 0.3mL
  • Automatic range switching gives a wide display range and facilitates highly precise measurements
  • The meter employs a highly selective flat ion electrode that ignores other ions
  • Ultrathin and lightweight, the meter can be easily carried to any location for on-site testing
With the Horiba Sodium Ion Meter, sodium concentration is as simple as placing a tiny sample on the meter's flat sensor. Accurate measurements can be taken from a sample as small as 0.3mL. The Model B-722 sodium meter is capable of making accurate measurements of sodium ion concentration from a very small sample size. This meter employs a selective sodium ion electrode that is unaffected by pH and the presence of other ions, enabling the accurate measurement of sodium ion concentrations. The meter's microprocessor converts this information to give a measurement of sodium concentration (Na+).

Additional Functions

  • Autocalibration function recognizes standards and is user-selectable for either one- or two-point calibrations.
  • Auto range change
  • Temperature compensation
  • IP67 waterproof
  • Auto hold
  • Automatic power off (30 min)


Measurement principle

Ion electrode method

sample volume

0.3mL or more*1

Measurement range

23 to 2300 ppm(mg/L) (10-3 to 10-1 mol/L)

Display range

0 to 9900ppm(mg/L)*2

Range and Resolution
(Valid numbers)

①0 to 1.0ppm : 0.1ppm
②0 to 99ppm : 1ppm
③100 to 990ppm : 10ppm
④1000 to 9900ppm : 100ppm




±10% of reading value.*4


Auto range change・Temperature compensation・Waterproof*5・Reading locking ・Automatic power off (30 minutes)


Custom (monochrome) Digital LCD


5 to 40˚C, 85% or less in relative humidity  (no condensation)


CR2032 batteries (x2)

Battery life

Approx. 400 hours in continuous use

Main Material

ABS epoxy


164mm × 29mm × 20mm  (excluding projections) / Approx. 50 g (meter only, without batteries)

Accessories included

2 CR2032 batteries/1 Pipette/Instruction manual/Quick manual/Storage case/Standard solution
(150ppm&2000ppm)(14mL)/5 pieces of Sampling sheetB

*1 Smaller amount(0.05mL or more) can be measured with the sampling sheet B.  (Please close the light shield cover. If a sample that contain particulate, please use ”Sampling sheet holder” (sold separately))
*2 When the measured value is out of the measurement range, the displayed value blinks. It should be used only as a guide.
*3 Selectable between one-point and two-point calibrations. 
*4 Repeatability in measurement of a standard solution after calibration using the same standard solution.
*5 IP67:no failure when immersed in water at a depth of 1 meter for 30 minutes. But the product can not be used underwater.

Unit Ship Weight: 2 lbs




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