Features: Handheld infrared thermometer with high performance and high accuracy. Digital LCD display with backlight, convenient to read at night. Optional temperature units: Celsius(C) and Fahrenheit(F). Emissivity: 0.95 preset 0.10adjustable, long press "C/F" button to adjust. This digital infrared thermometer can safely and accurately measure extreme temperatures in a wide variety of environments. Note: this item is not suitable for body temperature testing. Function: Easy one-hand operations LCD with backlight ON / OFF Switch Low battery indicator LED backlight system C / F temperature unit conversion Automatic Power-off after 7 seconds without activity Display hold Scan function Specifications: Measurement range: -50 C to 550 C (-58 F to 1022 F) Accuracy: -50 C to 0 C ( 3 C), 0 C to 100 C ( 1.5 C), 100 C to 550 C ( 1.5%) Repeatability: 1 C or 1% of reading Resolution: 0.1 C or 0.1 F Response Time: 500mSec, 95% response Emissivity: 0.95 Preset Distance To Spot Ration: 12: 1 Spectral response: 8 ~ 14m Storage Temperature: -20 C to 60 C (-4 F to 140 F) Operating temperature: 0 C to 40 C (32 F to 104 F) Operating Humidity: 10-95% RH non-condensing, up to 30 C (86 F) Package Weight: 146g/5.1oz Package Size:15.6*8.8*4.3cm/6.1*3.5*1.7in Package List: 1*Thermometer