Humidity/Temperature Meter Overview Humidity/Temperature Meter. Tiny bone shape with lightweight and small size case design are suitable for handling with one hand. Wristlet design provides extra protection to the instrument especially for user one hand operation. Thermister sensor for the Temperature measurement, fast response time. Key Features High precision humidity sensor with fast response time Thermister sensor for the Temperature measurement, fast response time Built- in microprocessor circuit assures excellent performance and accuracy Hold function to freeze the current reading value Dual display for show relative humidity and temperature values at the same time Low-friction ball vane wheels design provides high accuracy at high and low air velocity Technical Details 006P DC 9V battery (Heavy duty type) Display - LCD display, 8 mm digit height Measurement Anemometer, Temperature (Â °C, Â °F) Operating Temperature - 0 to 50Â °C (32 to 122Â °F)