Etekcity Lasergrip 630 Dual Laser Digital Infrared Thermometer -58~1076 (-50 to 580) Non-contact Temperature Gun with Adjustable Emissivity & MAX/MIN/AVG Display BETTER ACCURACY+ADJUSTABLE EMISSIVITY: The Distance to Spot Ratio is 16:1, meaning the Laser grip 630 can assure greater accuracy compared with other thermometers with DSR 12:1 or 8:1; Adjustable emissivity improves measurement accuracy across different surface types, just regulate the emissivity of your 630 according to the instruction (0.1-1.0) DUAL LASER+TARGET QUICKER: Dual laser pointers ensure high precision and indicate ideal measuring distance; Measure surface temperature ranging from -58F ~1076F / -50C ~ 580C, you can choose the unit from F / C; Response time: 500Ms MULTIFUNCTION: Thermometer with max/min/avg temperatures function; the LCD screen is backlit, it also has an auto-off function and a low battery indicator to extend the battery life so you never accidentally run out of juice (battery included) VERSATILE DESIGN: Infrared technology makes this thermometer handy to measure the surface temperature of various objects especially temperatures above boiling points and below freezing points; Use it for cooking, car maintenance, real estate, Electrical engineering and more NOTE: For best accuracy, the distance between the thermometer and object of Measurement should approximately be 14.17 inches (36cm); Temperature readings from this devices are inanimate objects, the measured temperature for humans or animals will not be correct; FDA, FCC, CE approved; Class 2 laser, optical power 0.3-0.49mW; 2-year warranty by Etekcity