• RH350-CAL
  • Manufacturer has 12 in stock
    This stock is typically available to ship in 3 - 5 working days.


The Extech RH350-CAL is a calibration kit for Extech humidity indicators. The RH350-CAL includes two bottles-- one at 33% RH and the other at 75%. These bottles are designed to fit snugly around the sensor for accurate calibrations.