IrThermo 2 click is a non-contact temperature measurement solution. The click board carries the TMP007 infrared thermopile sensor with an integrated math engine. The sensor absorbs the infrared radiation emitted by the target object (within the sensor's field of view) and the integrated math engine calculates its temperature by comparing it with the temperature of the silicon die. The measurement range of the sensor is between -40°C to 125°C (with a 14-bit resolution). The board is designed to use either a 3.3V or a 5V power supply.