Etekcity Lasergrip 774 Non-contact Digital Laser Infrared Thermometer Temperature Gun -58℉~ 716℉ (-50℃ ~ 380℃), Yellow and BlackBetter accuracy: The distance to spot ratio is 12: 1, meaning the laser grip 774 can accurately measure targets at greater distances compared to most other Thermometers; for best accuracy, the distance between the thermometer and object of measurement should approximately be 14. 17 inches (36cm) Target quicker: measure surface temperature ranging from 58 to 716 50 to 380, you can choose the unit from ; response time: 500Ms; a built in laser gives you