Humidity and temperature meter with Excel formatted data logging SD card. Measures temperature/humidity, dew point, wet-bulb temperature and surface temperature. Measurement ranges: Temperature 0 to 50 degrees C, R.H. 5 to 95%, dew point -25.3 to 48.9 degrees C, wet bulb -21.6 to 50 degrees C, Type K/J thermocouple from -45.6 to 510 degrees C.