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Klein NCVT-3 NCVT-3 Non-Contact Voltage Tester


Non-contact detection of voltage in cables, cords, circuit breakers, lighting fixtures, switches, outlets, and wires.


  • Frequency Range: 50-500 Hz
  • Voltage Range: 12-1,000 Volts AC
  • Power: Two alkaline 1.5V AAA
  • Weight: 4.0 oz


  • Non-contact detection of 12 – 1000V AC in cables, cords, circuit breakers, light fixtures, switches, outlets and wires as well as doorbells, thermostats, low voltage lighting and irrigation systems.
  • Simultaneous visual and audible voltage indicators.
  • Bright flashlight illuminates work area and may be used independent of voltage detection function.
  • Bar graph visual voltage indicator utilizes five vibrant LEDs for easy interpretation/viewing of voltage strength.
  • The audible voltage indicator beeps at a greater frequency the higher the voltage that is sensed, or the closer it gets to the voltage source.
  • "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.
  • IP67: Dustproof and waterproof
  • Drop Protection: 6.6 ft. (2 m)
  • Safety Rating: CAT IV 1000V

WARNING: California residents, see information about Proposition 65