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Get it between 2025-01-15 to 2025-01-22. Additional 3 business days for provincial shipping.
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
Product Description Extech RH300-CAL Humidity Calibration Kit for Extech 445715 From the Manufacturer Kit 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.