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.