Nubee Temperature Gun Non-contact Infrared Thermometer MAX Display & EMS Adjustable Max temperature function: it can take the highest temperature of the area tested by scanning and save the data at the bottom of the screen Ems adjustable function each object has its suitable emissivity, it can make test more accurate by adjust suitable emissivity for different objects Measures in Celsius or Fahrenheit (range: -50 to +500 /-58 Degree F to +932 Degree F), auto shut-off & low battery indicator Red laser pointer for precise aiming, powered by one 9-volt battery(include); take accurate temperature readings with this handheld gun U.S. FDA, FCC, CE, ROHS approved