Features: High performance and high precision portable infrared thermometer.Digital LCD screen with backlight, convenient to read at night.Optional temperature units: Celsius (C) and Fahrenheit (F).Emissivity: 0.95 preset 0.10 adjustable, 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: Simple one-handed operations LCD with backlight ON/OFF switch Low battery indicator LED backlight system C/F temperature unit conversion Auto power off after 7 seconds of no activity Standby display Scan function Specifications: Measuring range: -50 & deg; C at 550 & deg; C (-58F to 1022F) Accuracy: -50 & deg; C to 0 & deg; C (& plusmn; 3 & deg; C), 0 & deg; C at 100 & deg; C (± 1.5° C), 100° C at 550 & deg; C ( 1.5%) Repeatability: 1 & deg; C or 1% reading Resolution: 0.1 & deg; C or 0.1 & deg; F Response time: 500mSec, 95% response Emissivity: 0.95 preset Distance to spot: 12: 1 Spectral response: 8~14m Storage temperature: -20 & deg; C at 60 & deg; C (-4F to 140F) Operating Temperature: 0 & deg; C at 40 & deg; C (32F to 104F) Operating humidity: 10-95% RH non-condensing, up to 30 & deg; C (86F) Battery: 2*AAA (not included) Package Weight: 146g / 5.1 oz Package Size: 15.6*8.8*4.3cm/6.1*3.5*1.7in Package List: 1*thermometer