â·ÃÊͺ¶ÒÁÃÒ¤Ò The DV40 is a multipurpose instrument that can serve as both an AC voltage detector and and Infrared thermometer. DV40: AC Voltage Detector + IR Thermometer Non-Contact Voltage Detector (1000V) with Built-In InfraRed Thermometer Features: NCV (non-contact voltage detector) probe with integrated indicator light NCV Voltage Sensitivity 50 to 1000VAC (50/60Hz) Less than 1" detection range Built-in IR Thermometer for non-contact temperature measurements from -20 to 445°F (-30 to 230°C) with 0.1° resolution 9,999 count LCD displays temperature with selectable °F/°C internal switch Fixed 0.95 emissivity covers 90% of surface applications, 1:1 distance to target ratio Rugged double molded housing, compact size with pocket clip Complete with three LR44 batteries International Patent Pending AC DV40 Extech IR Thermometer Multimeter Voltage Detector