NOT FOR HUMAN: The thermometer gun cannot measure the internal temperature of an object. It accurately measures inanimate objects not humans or animals, class 2 laser optical power 0.5-0.9MwCONVENIENT FUNCTION: The thermometer features a backlit LCD screen and it automatically shuts off after 15 seconds to conserve battery. It also has a low battery indicator so you know when to replace the batteryEASY GRIP: The durable handle is designed to seamlessly fit in your hand. It's made out of ABS plastic which makes it dependable and easy to cleanVERSATILE USE: Infrared technology makes this thermometer handy to measure the surface temperature of various objects especially temperatures above boiling points and below freezing points. Use it when you are doing home repairs vacuum pizza ovens air conditioning mechanical high-end broilers making soap cooking and barbequing performing auto maintenance and automotive systems a host of other tasksBUILT FOR ACCURACY: Get instant results by simply pointing the laser at the area you want to measure. Measure surface temperatures ranging from -58f to 716f/ -50c to 380c and easily switch between Fahrenheit and Celsius. Its distance-to-spot ratio is 12:1 so you can get accurate measurements from greater distances. For the best accuracy the thermometer should be 14 in/ 36 cm away from the object