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PeakTech Cable tracer, transmitter and receiver, 2 m (7 ft) review

Not a wall scanner but a cable tracer: a transmitter injects a signal into a conductor and a receiver follows it, to a stated depth of 2 m (7 ft), on live or dead cables.

What the figures leave us with A different instrument in the same hub. If the question is "which cable is this", nothing else here answers it.

The only instrument here that follows a specific conductor.

What the manufacturer publishes

A cable locator detecting both de-energized and live conductors. A transmitter and a receiver allowing non-contact tracing of surface and concealed cables, with a stated reception depth of up to 2 m (7 ft). Selectable transmitter channels allowing up to seven transmitters to be used simultaneously, with high sensitivity. A bright LCD with bar graph for tracing cables in walls, ceilings and floors.

Detection against tracing

A wall scanner responds to whatever is behind the plaster, which on a busy wall is several things. It cannot tell you which of them is the circuit you switched off. A tracer puts a signal on that circuit and follows only that signal, which is the difference between “there is a cable here” and “this is the cable”.

Where the two meters go

Through a floor slab, a stud wall and a suspended ceiling. That is the reach that makes it possible to follow a circuit from a distribution board to an outlet on another story — a job no detector in this hub can attempt.

Availability

No such listing: the American Amazon shop answers the reference with a search box rather than a page.

Read from Keepa on the day this page was last revised; stock and price both move without notice.

What it has, and what it lacks

Strengths

  • Traces a specific cable rather than detecting anything present — a fundamentally different capability
  • A stated reception depth of up to 2 m (7 ft), forty times the cable depth of the scanners here
  • Works on de-energized as well as live cables
  • Up to seven transmitters usable simultaneously on selectable channels
  • A bar-graph LCD for following signal strength

Compromises

  • Two units to carry, set up and keep charged
  • The most expensive instrument in this hub
  • Not found on the American market

Specifications

Amazon referenceB01M7PPFAR (identical on 5 markets)
EAN4250569402425
Also statedTransmitter plus receiver
Stated dimension or rangeup to 2 m (7 ft) reception depth
Channels7 channels
Measuring modelive and dead cables

What gets asked here

How is this different from a stud detector?

A scanner asks "is there anything behind this wall". A tracer asks "where does this particular cable go". The transmitter is clipped to the conductor you care about and the receiver follows only that signal — through walls, ceilings and floors, past every other cable in the building.

What does 2 m (7 ft) reception depth mean?

The receiver can pick up the injected signal through up to two meters of material. That is a different order of capability from the 50 mm (1.97 in) a wall scanner reaches on a live cable, and it is what makes tracing through a floor slab possible.

Why seven channels?

So several transmitters can be attached to different conductors at once and told apart. On a distribution board with unlabelled circuits, that turns a day of switching breakers into an afternoon.

Our score

8.8/ 10

A different instrument in the same hub. If the question is "which cable is this", nothing else here answers it.

This one’s price among measuring instruments

A reference exists on these Amazon stores: France, Germany, Italy, Spain, United Kingdom. Listed is not the same as in stock — availability changes daily.

Details checked on August 31, 2026.

Who should pick this one, among measuring instruments

Following one specific cable through a building, which no wall scanner can do at all.

Sources

Specifications: the manufacturer sheet for measuring instruments and the matching Amazon product page. Prices and availability: Keepa. Every figure on this page names its source.

The method applied to these measuring instruments