ANGGO Non-contact Digital Infrared Thermometer Temperature Gun with EMS Adjustable (-58 &deg;F to 1022&deg;F) Measures in Celsius or Fahrenheit mode with temperature range: -50C to 550C /-58 F to 1022F with  1.5C instrumental error. EMS adjustable emissivity function enables to get more accurate temperature by adjusting emissivity based on different articles. Built-in red laser for precisely aiming. Distance Spot Ratio: 12:1, and Response Time with 500ms for instant Result Readout. Portable and anti-slip design to make it easily operated to get the temperature outdoor and indoor. FDA, FCC, CE, ROHS approved. Powered by 2xAAA battery (Included). Measures in Celsius or Fahrenheit mode with temperature range: -50C to 550C /-58 F to 1022F with  1.5C instrumental error. EMS adjustable emissivity function enables to get more accurate temperature by adjusting emissivity based on different articles. Built-in red laser for precisely aiming. Distance Spot Ratio: 12:1, and Response Time with 500ms for instant Result Readout. Portable and anti-slip design make it comfortable to be held and easily operated to get the temperature of any stuff outdoor and indoor.