NF-820 Underground Cable Tracker Detector Tester for AC 220V High & Low Voltage, Anti-jamming, Wire Locator with Alligator Clip, Coax BNC telephone RJ11 network RJ45 cable, Multi-core Metal Line

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This low & high voltage anti-jamming underground cable detector is mainly used to detect cable location in underground, inside-wall, ceiling, flooring and other invisible cables. Has CE approval. Locate power cable, coax cable, telephone cable, network cable, multi-core metal line, etc. The best tool for engineers for applications like:

  • Cable wiring, weak current system of integrated wiring circuit
  • Communication cabling, home decoration system
  • Telephone system, computer network and other metal conductor fields
  • Installation and maintenance of utility



  • Detect underground wire, wire inside-wall, ceiling, flooring or other invisible cables with high or low voltage via the alligator clip; the detection range is 0-2m deep and cable length is up to 10km
  • Signal sensitivity is adjustable (0-2m)  and low battery indicator for Emitter and Receiver
  • Trace cable like single metal line, 2-core or multi-core cable, with no interference
  • Cable lead can clamp cable with AC 220V~400V high voltage to avoid burning and damaging the device being tested
  • Uses rechargeable lithium battery, alligator clip and telephone cable adaptor. Alligator clip and socket can be used at the same time


  • Emitter
    • Max distance of transmission: 10Km
    • Max. depth distance: 2m
    • Low voltage indication: ≤3.5V(LED will flash)
    • Volume Regulate Function: Audio volume level control
    • Signal transmission format: Multi-frequency pulse
    • Charging current: 800mA
    • Signal output: 21Vp-p
    • Signal sensitivity distance: 0~2m
    • Max. working current: 150mA ±10%
    • Power supply: DC 3.7V lithium battery
    • Working temperature: -10~50°C
    • Working humidity: 30~60%
    • Weight: 210g
    • Dimension: 150(L) x55(W) x34(H)mm
  • Receiver
    • Low voltage indication: ≤6V(LED will flash) 
    • Max. working current: ≤80mA ±10%
    • Power supply: DC 9V battery
    • Working temperature: -10~50°C
    • Working humidity: 30~60%
    • Weight: 110g
    • Dimension: 255(L) x45(W) x28(H)mm

Set Includes:

  • 1 x Emitter
  • 1 x Receiver
  • 1 x USB cable
  • 1 x Power adaptor
  • 1 x Earphone
  • 1 x English Manual
  • 1 x Carry Pouch
  • 1 x 9V battery

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