NF-819 Anti-jamming Underground Cable Tracker Detector Tester Wire Locator Low Voltage w/ Polarity Test Function Locate Electrical Wires, Telephone Wire, Coax Cable

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Mainly used to detect cable location in underground, inside-wall, ceiling or other invisible cables. Has CE approval. Detects power cable, coax cable, telephone cable, network cable, multi-core metal line, etc. The best tool for the engineers using in the following application:

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


  • Trace cable such as single metal line, 2-core or multi-core cable, twisted pairs, etc without current interference
  • Locate underground wires (both live wire and de-energized wire), inside or behind the wall, ceiling, floor slab, or other invisible cable, detection range is 0-2m deep and 15km long
  • Signal sensitivity for tone generator and amplifier probe is adjustable from 0 to 2m
  • Detects power cable, coax cable, telephone cable, network cable, multi-core metal line
  • With polarity test function and low battery indication. Tone Generator is powered by rechargeable battery


  • Tone Generator / Emitter
    • Power supply: DC 3.7V lithium battery
    • Voltage Indicator: ≤3.5V (Power LED light flashing)
    • Charging current: 800mA
    • Signal transmission format: Multi-frequency pulse
    • Signal output level: 21Vp-p
    • Signal transmission distance: 15km
    • Signal sensitivity distance: 0-2m
    • depth distance: 2m
    • Volume Regulate Function: Audio volume level control
    • Dimension: 150 x 55 x 34mm
    • Weight: 155g
  • Amplifier Probe / Receiver
    • Power supply: DC 9V battery
    • Working current: ≤6V (Power LED light flashing)
    • Dimension: 255 x 45 x 25mm
    • Weight: 95g (battery excluded)

Max. working current:  40mA~50mmA±10%
Working temperature: -10~50°C
Working humidity: 30~60% RH



  • 1 x Tone Generator (Emitter) with alligator clip and RJ11 (telephone) cable
  • 1 x Amplifier Probe (Receiver)
  • 1 x Micro USB charger cable
  • 1 x Charger Power adaptor
  • 1 x Earphone
  • 1 x English Manual
  • 1 x Carry Pouch
  • 1 x 9V battery
  • 1 x Color box

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