The DeWalt 12V Infrared Thermometer is designed to provide non-contact, laser-guided temperature readings from safe distances. The thermometer has a range of up to 500ºC and adjustable emissivity for accuracy in a variety of workplace environments. It is ideal for finding hot spots in electrical equipment, evaluating insulation, finding water leaks and finding hot spots in car engines, amongst other uses. Featuring a colour coded LED indicator, audio alarm, simple user interface, class II infrared laser for increased accuracy and and ergonomic design. This is a great piece of technology.