• Compact Salt Meter B-721

Compact Salt Meter B-721

  • Minimum sample volume: 0.3ml
  • Salinity, mV, and temperature display
  • Up to 2 calibration points

View Quote

Can we help you?

The only pocket meter that directly measures sodium ion concentration in 0.3ml sample (or 0.05ml sample with sampling sheet B) and converts it into salinity or NaCl salt concentration

No need for a beaker to calibrate the meter or measure a sample. Just place few drops of the standard or sample onto the sensor. This procedure saves you time and prevents wasting your precious sample.


  • Minimum sample volume: 0.3ml (0.05ml with sampling sheet B)
  • Salinity, mV, and temperature display
  • Up to 2 calibration points
  • Auto calibration
  • Auto standard recognition: 0.5 & 5.0% NaCl (default)
  • Changeable high and low calibration values
  • Temperature calibration: 5 to 40.0 ºC
  • Auto stable / auto hold measurement
  • Auto power off: 30 mins.
  • Low battery indicator
  • IP67 Rating dust & waterproof
  • Replaceable sensor
  • 400 Hours battery life: continuous use without backlight
  • Material: ABS epoxy
  • Display: custom (monochrome) digital LCD with backlight
  • Operating conditions: 5 to 40 ºC, 85% or less relative humidity
  • Warranty: 2 years - meter; 6 months - sensor
  • Packed in handy carrying case
  • Supplied with 0.5% & 5.0% NaCl standards (14ml each), 5 x sampling sheets B, 2 x CR2032 batteries, dropper, instruction and quick manuals
Measurement Principle Ion Selective Electrode
Minimum Sample Volume 0.3ml (0.05ml with sampling sheet B)
Salinity Range 0.01 to 25% by weight
Resolution 0.00 to 0.99%: 0.01%
1.0 to 9.9%: 0.1%
10 to 25%: 1%
Calibration Points Up to 2
Accuracy ±10% of reading value
Temperature Display 0 to 50.0 ºC
Temperature Calibration 5 to 40.0 ºC
Display Custom (monochrome) digital LCD with backlight 
Operating Temperature 5 to 40.0 ºC
Operating Humidity 85% or less relative humidity (no condensation)
Power CR2032 batteries (2)
Battery Life Approx. 400 hours in continuous use without backlight
Material ABS epoxy body
Dimensions 164 x 29 x 20 mm (excluding projections)
Mass Approx. 55 g (including sensor and batteries)
Functions Auto Calibration
Auto Standard Recognition
Changeable High & Low Calibration Values
Temperature Calibration
Auto Hold / Auto Stable Measurement
Switchable Backlight
Automatic Power Off (30mins)
Low Battery Indicator
IP67 Dust / Waterproof
Replaceable sensor