Non-Contact V-Tester, Provides Non-Contact Determination Of AC Voltage In Cables, Cords, Circuit Breakers, Switches, Outlets & Wires, Infrared Thermometer Measurements, Making It The Perfect Choice For HVAC Professionals, Designed Specifically For HVAC Applications, Detects AC Voltage From 12V To 1000V With Visual & Audible Indicators, IR Thermometer With User Selectable Degrees/Celsius From -22 To 482 Degrees -30 To 250 Celsius, Convenient Laser Pointer Also Helps Target 4:1 Distance To Spot Ratio For Rr Temperature, Backlit LCD Display With 0.1 Degree Resolution, Auto Power Off Conserves & Extends Battery Life, Screw Thread Battery Cap With O-Ring Ensures Dust & Water Resistance, Lightweight, Compact Tool With Pocket Clip Provides Easy Storage & Quick Access.