Nubee Dual Laser Optical Focus Temperature Gun Non-contact Infrared IR Thermometer Range -58F to 1022F w/Dual Laser Sight Includes Battery MAX Display and Emissivity Adjustable FDA Approved Max temperature function: it can take the highest temperature of the area tested by scanning and sa EMS adjustable function: each object has its suitable emissivity, the adjustable emissivity function Engineered to high precision standards.Accurate readings from -58 to 1022F Standard 9V battery(INCLUDE); Low battery indicator Ability to measure hazardous, inaccessible and moving objects, U.S. FDA, FCC, CE, ROHS approved