Tag: 445703

EXTECH 445703 Big Digit Hygro Thermometer INTRODUCTIONCongratulations on your purchase of Extech’s Big Digit Hygro-Thermometer. This professional meter, with proper care, will provide years of safe reliable service. OPERATION Open the battery compartment by pushing the cover on the rear of the instrument downward as indicated by the arrow. Remove the battery safety strip and…