Calibration Feature Provides Accurate Results
The EXTECH® Big Digit Hygro-Thermometer can be calibrated to give you more accurate humidity readings. The probe can be clipped onto the device or extended using its 18"L cable. The display is easy to read. Functions include: minimum/maximum with reset and rear calibration adjustment pot. Measures 4.3"H x 3.9"W x 0.78"D. Hygro-Thermometer comes complete with a built-in stand, mounting bracket, sensor and one AAA battery. Calibration Bottles sold separately.