Measure humidity, dew point, wet bulb, and temperature (non-contact/IR, air and type K probe), in laboratories, cleanrooms and storage areas. Meter has a heavy duty rugged double molded housing ideal for use in harsh applications. View measurements in low light areas with large triple digit backlit display. Built-in infrared thermometer provides non-contact temperature measurement with a 30:1 ratio. Accepts all type K min-connection probes for direct contact temperature readings. Meters feature switchable °F/°C units, MIN/MAX that will recall the highest and lowest readings, HOLD button, auto shutoff, low battery indicator and USB interface with Windows® compatible software. Built-in self calibration utility for relative humidity allows for field cali