The Triplett IRTUV50 12:1 IR Thermometer with UV Leak Detection instantly measure the temperature of objects without making contact and has 5 Blue UV lights for detecting refrigerant leaks in automotive and HVAC systems (UV dye not included). Additional features include a built-in circular laser to identify the measurement area, 0.1 to 1.0 adjustable emissivity, audible and visual high/low Temperature Alarms, Min/Max/Avg/Diff, and 5 white LEDs to illuminate dimly lit or dark work areas. The backlit LCD display has selectable °F or °C readout. Automatic Data Hold freezes the reading on the display when the trigger is pulled and Auto power off shuts the meter off after 10 seconds to conserve battery life. 1 year warranty.