Features: High performance, high accuracy portable infrared thermometer.Digital LCD display 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 set.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 Scanning function Specifications: Measuring range : -50° C at 550° C (-58F to 1022F) Accuracy: -50° C at 0° C (±3°C), 0° C at 100° C (±1.5°C), 100° C at 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: 12: 1 Spectral response: 8~14m Storage temperature: -20° C at 60° C (-4°F to 140°F) Operating Temperature: 0° C at 40° C (32°F to 104°F) Operating Humidity: 10-95% RH non-condensing, up to 30° C (86F) Battery: 2 * AAA (not included) Package Weight: 146g / 5.1oz 15.6 * 8.8 * 4.3cm / 6.1 * 3.5 * 1.7in 1 * thermometer