The NCVT-4IR provides non-contact determination of AC voltage in cables, cords, circuit breakers, switches, outlets and wires; as well as infrared (IR) thermometer measurements, making it the perfect choice for HVAC professionals.PRODUCT FEATURES:• Designed specifically for HVAC applications• Provides non-contact determination of AC voltage in cables, cords, circuit breakers, switches, outlets and wires, as well as AC voltage in security, entertainment, communications, environmental control, and irrigation systems• Detects AC voltage from 12 to 1000V with visual and audible indicators• IR thermometer with user selectable °F / °C from -20 to 482°F (-30 to 250°C)• Convenient laser pointer also helps target 4:1 distance to spot ratio for IR temperature• Backlit LCD display with 0.1 degree resolution• Auto power-off conserves and extends battery life• Screw-thread battery cap with O-ring ensures dustproof and waterproof ingress protection• Lightweight, compact tool with pocket clip provides easy storage and quick access