The AEMC 6681 cable and circuit tracer detects buried (in ground or in walls) telecommunications cables, electric power and other cables, and metal pipes, during modification or maintenance work on installations of category III (or lower), at voltages of 300V (or less) with respect to ground. The system can locate open circuits, shorts, track cables and locate fuses or circuit breakers. The instrument is a portable system that includes a transmitter, a receiver, and accessories. The transmitter and receiver both have a large back-lit LCD and large keys.

The transmitter applies a modulated AC to the circuit that is to be located, which creates a proportional alternating electric field. The transmitter is also an AC/DC voltmeter; the display of the measured voltage is accompanied by a symbol warning of the presence of a voltage. In addition, the transmitter has a self-test function, indicating good transmission between transmitter and receiver. Both the transmitter and receiver units include a flashlight feature that assist the operator when working in dark unlit areas.

The receiver features a sensitive sensor that generates a display proportional to the electric field detected. The variations of this signal, after decoding, processing, and shaping, enable the user to determine the location of underground cables and pipes, and detect any faults in them. The receiver also includes a buzzer that changes pitch as a function of the strength of the detected signal.

Key Features:

  • Detection depth up to 2m (6ft) in single-pole mode (0.5m - 1.6ft) in two-pole mode
  • Use on energized circuits up to 300VAC CAT III
  • Detect circuit breakers and fuses
  • Auto and manual sensitivity adjustment
  • 125KHz output signal frequency
  • Large LCD screen with backlight
  • Built-in flashlight
  • EN 61010-1 and EN 61326-1 standards


  • Location and tracing of cables and outlets
  • Detection of fuses and circuit breakers
  • Location of cable breaks using one or two transmitters
  • Detection of faults in under floor heating systems
  • Detection of metallic pipes in walls and floors
  • Short circuit detection (in two pole operation)
  • Detection of underground cables
  • Identification of conductor pairs