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Sonel Test Equipment

LKZ-720 Cable Detector

LKZ-720 Cable Detector

Regular price $1,464.00
Regular price Sale price $1,464.00
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Locate wires and cables with the LKZ-720 Wire Tracer

The Sonel LKZ-720 cable and wire locator is a device consisting of the LKN-720 transmitter and the LKO-720 receiver. This instrument is dedicated to finding cables and other underground infrastructures. The LKZ-720 allows the location of both metallic objects (cables) and non-conductive objects (PVC pipes, concrete, etc.). The locator is mainly dedicated to use in the energy and installation industry, among others.

Main features

  • Detection of wires and cables (live or not).
  • Tracing underground cables.
  • Tracing conductive water and heating pipelines.
  • Flow and accurate locating the object.
  • Phase detection mode.
  • Operation in wide range of rated voltage, up to 500 V RMS.
  • Five modes of wire tracer operation: voltage, current, current-voltage, power and clamp.
  • Additional accessories enable precise localization - such as contact or non-contact probes and measurement clamp.

...and much more


  • Receiver operation with max. 4 transmitters at the same time to locate interruptions or distinguish wires.
  • Receiving status information from the LKN-720 transmitter.
  • The function 3D - detecting the direction of current.
  • A LED torch.
  • Headphone socket.
  • Software upgrade via USB.
  • Screen backlight for work in dark.


  • 4 codes of the transmitted signal.
  • Transmission of information about the transmitter settings and battery charge level.
  • Measurement of voltage at the object to 500 V RMS.
  • Three levels of amplification.
  • Automatic or manual selection of operation modes.
  • Screen backlight for work in dark.


Detection and tracing cables in ceilings, walls and floors

In response to the needs of customers, the LKO-720 has a specially designed 3D antenna that raises the precision of the wire tracing. Determine direction of wires in concrete up to 5 cm will not be a problem now.

Multi-transmitter operation

LKZ enables operation work with four transmitters at the same time. The multi-transmitter operation of the system enables precise location of breaks in an electric system and identify individual cores in the cable or cables in a trench.

Locating power points and switches in buildings

Specially modulated and coded signal generated by the LKN-720 transmitter allows to locate and identify sockets and switches in energized and de-energized circuits.

Identification of fuses on the distribution board

Thanks to the precise sensor in LKO-720 and additional contact and non-contact probes, identify of breakers and fuses now will be easily and time-saving.

Possibility to tracing in no access conductors

LKO-720 with C-8 clamp used in the current mode or in other mode forcing current flow, allows to uniquely identify wire or cable with no physical connection to it.

Non-contact detection of live cables

LKO-720 allows to precisely detect energized wires in air and concrete without additional probes. 

Additional areas of use

  • detection of breaks in cables and wires
  • locating short circuits between leads
  • tracing shielded cables
  • tracing cables in metal ducts
  • tracing underground cables
  • tracing conductive water and heating pipelines





Technical data



LKN-720 | Technical specification

Parameter Description
Insulation type acc. to EN 61010-1 double
Measurement category acc. to EN 61010-1 III 600 V
Ingress protection rating acc. to EN 60529 IP67
Power supply 4 x AA alkaline batteries
or 4 x Ni-MH rechargeable batteries
Maximum operating voltage 500 V RMS
Operating temperature -10°C...+50°C | 14°F...122°F




LKO-720 | Technical specification

Parameter Description
Ingress protection rating acc. to EN 60529 IP40
Maximum depth of the analysed object (“I” mode) 2 m | 6.6 ft
Maximum range of contactless neon probe
in air 50 cm | 1.6 ft
in concrete 5 cm | 0.16 ft
Power supply 9 V 6LR61 alkaline battery
Operating temperature -10°C...+50°C | 14°F...122°F




Weight and dimensions

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