•  Extech RH300-CAL  Humidity Calibration Kit

33% and 75% Humidity Calibration Reference

The RH300-CAL is a kit which contains 33% and 75% humidity calibration bottles. Used for verifying calibration of the 445815 humidity meter. Bottles have small opening designed to snuggly fit the remote sensor probe.


Humidity Calibration Kit Features:

  • Bottles designed with small opening for snugged fit of the sensor
  • Includes 33%RH and 75%RH calibration bottles



Specifications                                          Range
Humidity                                       10 to 90%RH
Temperature (internal)             -4 to 122°F (-20 to 50°C)
Temperature (external)           -4 to 158°F (-20 to 70°C)
Dew Point                                  -90.4 to 122°F (-68.0 to 49.9°C)
Wet Bulb                                    -6.9 to 122°F (-21.6 to 49.9°C)
Dimensions                                7 x 1.9 x 1" (178.5 x 48.4 x 24.7mm
Weight                                        3.3oz (95g)


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Extech RH300-CAL Humidity Calibration Kit


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