Calibration Kit for RH Sensors

Calibration Kit for RH Sensors
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These reusable jars are made to easily calibrate relative humidity in the pSense Portable CO2 Meter, the pSense High Accuracy Portable CO2 Meter, and the cSense CO2-Temp-%RH Meter with relay

To use simply unstopper the jar, insert the probe into the jar, and start the calibration mode. It's that easy!

Note: Each meter has specific instructions on how to calibrate relative humidity. Make sure to follow the instructions closely to avoid damaging the meter.


  • MgCl (Magnesium Chloride) Salt at 33% Jar
  • NaCl (Sodium Chloride) Salt at 75% Jar
  • Calibration Temperature Range: 15° to 35° C
  • Reusable


  • Dimensions: 2.5 in. diameter, 1.5 in. tall
  • Weight: 3.65 ounces