Magnetic anomalies in the ground, such as metals or unexploded bombs, are detected via active electromagnetic induction (EMI) or using passive magnetometers. While active EMI is used above all for objects near the surface, passive magnetometers make it possible to search at greater depths. Depending on the testing task and area of use, FOERSTER devices can either be carried or equipped with a set of wheels.

FEREX: The FEREX name stands for iron detectors with the highest sensitivity. The different configurations allow georeferencing or navigation, for example. For scanning large areas, the FEREX probes can be mounted on multi-probe holder systems.

FEREX API borehole: Borehole scanning is an addition to the FEREX detector. This allows deeper objects to be reliably checked when there are interference signals near the surface.

DATA2LINE BASIC, GEO, and UXO: DATA2LINE is the comprehensive analysis software for all FEREX detectors. The basic module is expandable, for example, with the UXO module, which can calculate the possible depth of an object.

FOERSTER MULTICAT: The robust, off-road multi-probe trailer FOERSTER MULTICAT was specially developed for scanning large areas. This makes it possible to cover an area of up to 2 hectares per hour. The data acquisition and analysis takes place with the high-performance DATAMONITOR 3 software.

METEX: The products of the METEX device family are especially suited for detecting deeper bombs and cluster munition. The detectors can be used on land as well as in shallow water.

MINEX: The MINEX was specially developed for the safe detection of so-called minimum metal or "plastic" mines near the surface.