An infrared thermometer is a thermometer which infers temperature from a portion of the thermal radiation sometimes called blackbody radiation emitted by the object being measured. They are sometimes called laser thermometers if a laser is used to help aim the thermometer, or non-contact thermometers or temperature guns, to describe the device's ability to measure temperature from a distance. By knowing the amount of infrared energy emitted by the object and its emissivity, the object's temperature can often be determined. Infrared thermometers are a subset of devices known as "thermal radiation thermometers.Display Min,Max or avg temp, Hi & lo alarms for rapid display for measurements, Precise laser technology for accurate measurements, large easy to read backlit LCD display, IP40 rated for extra protection,DISTANCE TO SPOT RATIO (D:S) 10:1Also Display the difference between two measurements ,Powered by one (1) AA
battery.Response rime (95 %) :<500 ms (95 % of reading) .Size (156 x 80 x 50) mm (6.14 x 3.15 x 2) inches.