Humidity Calibration Kit for Extech Digital Hygro-Thermometer

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SKU: 11-1518 Categories: , ,


The RH300-CAL is a Humidity Calibration Kit with 33% and 75% humidity calibration bottles. Two bottles are included, one for the 75% relative humidity reference and one for the 33% relative humidity reference.

The 75% relative humidity reference uses Sodium Chloride (NaCl) to produce the standard. The 33% relative humidity reference uses Magnesium Chloride (MgCl). The bottles are designed with small opening for snug fit of the sensor probe.

Product Details:

  • 33% RH Calibration Bottles; 75% RH Calibration Bottles
  • Relative Humidity Accuracy: ±3%
  • Sample Humidity: 33%; 75%
  • It is ideal for use with Extech Big Digit Hygro-Thermometer

Additional information

Weight 1 lbs

1 review for Humidity Calibration Kit for Extech Digital Hygro-Thermometer

  1. David Briggs (verified owner)

    Extremely valuable tool in making dry cured salami

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