i never received this item. however i did message the company twice and they never got back to me.
Product DescriptionGreenPro Lasergrip Thermometer guns have been used by major airports and security offices during the 2014 Ebola outbreak. Laser Guided Aim with precision at whatever you wish to measure, thanks to the laser beam guidance feature. Even from a far distance, the laser provides a mark to ensure accuracy every time you make a measurement. Infrared Lens The Infrared lens inside the Lasergrip Thermometer provides temperature readings without the need to touch or come close to anything dangerously hot or cold. You'll be able to effortlessly measure high temperatures, hazardous and inaccessible objects, and even moving targets; such as hot engine parts, cooking surfaces, swimming pools, bath water, wine coolers, hot asphalt, electric bearings, and much more. Specifications Temperature Range: -50℃～380℃ (-58℉～716℉) Accuracy: ±2% or 2℃ Distance Spot Ratio: 12:1 Emissivity Adjustable: 0.95(fixed) Response Time and Wavelength: 500ms and (8-14)um Repeatability: ±1% or±1℃ Resolution: 0.1℃ or 0.1℉ Storage Temperature: -20-50℃ (-4-122℉) Operating Temperature: 0-50℃ (50-122℉) NOTE The measuring surface is about 2cm below the infrared aiming point. When the temperature is beyond measuring range, the LCD will display "HI" and "LO". Package Included 1 x GreenPro Non-Contact Infrared Thermometer 1 x 9-Volt Battery 1 x User's Manual