Neiko Professional Non Contact Digital Infrared Thermometer Gun Temperature Range: -20C to 550C or -4F to 1022F Temperature Range: -20C to 550C or -4F to 1022F (one button switch between Fahrenheit to Celsius) Accuracy: +/- 2C (+/- 4F) or 2% Reading; distance to Spot ratio: 8:1 Convenient backlight LED display 9V Alkaline battery included