Extech RH300-CAL Humidity Calibration Kit;
Extech RH300-CAL Humidity Calibration Kit

Keep your hygrometer/thermohygrometer working at its best with these parts and accessories. 33% RH salt bottle calibration standard FOR 37803-12.

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Keep your hygrometer/thermohygrometer working at its best with these parts and accessories. 33% RH salt bottle calibration standard FOR 37803-12.

  • Optional calibration kit for calibrating extech humidity meters
  • 33% and 75% relative humidity bottles
  • Bottle designed with small opening for snug fit of the sensor probe
  • Optional calibration kit for calibrating extech humidity meters
  • 33% and 75% relative humidity bottles
  • Bottle designed with small opening for snug fit of the sensor probe

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