Nubee 8550H Dual Laser Instant-read IR Infrared Thermometer Non-contact Temperature Gun Emissivity Adjustable Dual lasers pointers ensure high precision and allow you to see the actual target diameter. It also indicates ideal measuring distance; High distance Spot Ratio 16:1- measures smaller surface areas at greater distances than 12:1 and 8:1 models. Engineered to high precision standards. Accurate readings from -58 to 1022F ( -50 to 550C); Temperature readings for current and maximum temperature; Celsius and Fahrenheit switchable. Instant-read with less than 1 second response time; Auto shutoff at 15 seconds when idle. Standard 9V battery(INCLUDE); Padded, protective carrying case with belt loop(INCLUDE); Low battery indicator Ability to measure hazardous, inaccessible and moving objects, U.S. FDA, FCC, CE, ROHS approved