Dew Point Indicator, Data Logging, +/-1 Degrees Humidity Accuracy, 14 Degrees to 212 Degrees Temp. Range (F), +/-1 Degrees Temp. Accuracy (F), 14 Degrees to 212 Degrees F Dew Point Range, 1 Percent Humidity Resolution, Sensor Type Small, Display LCD, Bar Graph No, Battery Type 9V, Auto Power Off No, Data Hold No, Data Logging No, Interface No, Calibration Certificate No, Includes 17 in Flex Arm