The device detects cables based on their transmitted signals, which can spread across the entire wall due to the high conductivity of the walls.

Follow the step-by-step guide when using the tool and make sure that all measurements are performed in the same way. In particular, move the tool three times in each direction – under constant external conditions.

The construction of commercially available cables causes fluctuations in the electric field strength at the surface, which influences signal detection, through to complete elimination.

In the case of live three-phase power cables (e.g. power connection for the cooker), the different phases of the cable cancel each other out so that the detector cannot detect the signal.

The tool detects certain construction materials as metal due to the high iron content (e.g. aluminum foil on under floor heating systems or metal-clad thermal glass wool insulation).