Features: Noncontact infrared (IR) thermometers use infrared technology to quickly and conveniently measure the surface temperature of objects without physically touching it. You simply aim, pull the trigger and read the temperature on the LCD display. Clip pen design, compact and can to be taken wherever you go. Celsius and Fahrenheit Selection. NOTE: Product will turn off automatically after 15 seconds of inactivity. Specifications: Type: Pen type IR thermometer Unit of temperature: C & F Temperature range: -50 to 250 degree centigrade Accuracy: ±2% or 2 degree centigrade Resolution: 0.1℃ or 0.1℉ Response time: Emissivity: 0.95 fixed Distance spot ratio: 1:1 Recommended measuring distance: 10cm/ 3.9in Auto power off: About 15s Power supply: 2pcs AG13 cell buttons (1.5V each) Working environment: 0-50 degree centigrade Relative humidity: 10%-95RH non-condensing Storage temperature: -20 to 50 degree centigrade Material: ABS Item dimension: 12.5 * 2.2cm/ 4.9 * 0.9in Item weight: 30g/ 1.05oz Package dimension: 14.5 * 5 * 3cm/ 5.7 * 2.0 * 1.2in Package weight:40g/ 1.41oz Package Content: 1 * Pen type IR thermometer 1 * User manual