The IDEAL 61-847 dual laser targeting infrared thermometer (IRT) is a non-contact temperature sensing meter. Its dual lasers define the outside edges of the area whose temperature will be measured. The IRT displays the actual measurement as well as 4 selectable additional measurements. Hi and lo alarms and emissivity are all user programmable. The IRT measures temperatures from -26 to 932 F (-32 to 500 C). The LCD backlit display can be illuminated when working in poor or zero lighting conditions and the laser targeting system can be turned on and off at the user's discretion. The unit uses two red lasers located above and below the IR sensor to accurately outline the area being measured. An industrial grade overmolding and lanyard tie off point enhance grip and drop protection. This meter features hold, min, max, avg, difference, high/low visual and audible alarms, lock measurement for temperature measurement over time (unit can be mounted on a standard camera tripod), adjustable emissivity, and selectable auto power off functions. The meter comes with 2 1.5V AAA batteries.