Medical grade Non Contact infrared thermometer is a thermometer which infers temperature from a portion of the thermal radiation sometimes called black-body radiation emitted by the ***** being measured. This permits temperature measurement from a distance without contact with the ***** to be measured.temperature measurement range of -26°F to 1922°F or -32°C to 1050°C. The IR-720 is specifically designed for HVAC/R, electrical, industrial maintenance, automotive as well as quality control and fire prevention applications.