General description

The FEREX is a vertical gradient fluxgate magnetometer that measures the deformation of the earth's magnetic field evoked by ferromagnetic objects. Magnetometers are suitable for

the detection of ferromagnetic metals like iron, steel or nickel. Normally the detection Depth of magnetometers is larger compared to active EMI detectors but it varies and depends on

the object's mass and its magnetic properties.

The FEREX 4.034 can be used either in direct meter mode or in data recording mode. Four channels for data recording allow the FEREX 4.034 to be expanded into a multi probe holder system for large area survey. The device offers the possibility to connect alternative sensors and GPS systems via a serial interface. These allow precise navigation and geo-referencing of the recorded data..

Working characteristics

Detection of ferrous material/UXO e.g. bombs, shells, projectiles, sub-ammunitions


Detection of underground infrastructure, e.g. tunnels


Magnetometer with tension band technology - provides

sensor alignment for Lifetime


In-built filters for detection in close vicinity to power lines


Special mode for search along fences, pipelines and

railway tracks


Special mode for filtering small objects


Precise handling, light weight, compact design


High detection sensitivity, improved signal to noise ratio


3.5” color sunlight readable display


Data logging of up to 4 FOERSTER fluxgate sensor

channels (differential and absolute values)


Option to link alternative sensors

(e.g. GEOMETRICS® 824A) via serial interface


Serial interface to link various DGPS systems or



Implemented tool to edit customized GPS-drivers


Comfortable navigation screen and various navigation modes

Integrated stake-out function using imported DATA2LINE object and position lists


Managing large survey areas consisting of multiple survey grids


Definition of various survey grid layouts by defining or importing polygon positioning data


Software DATA2LINE for project definition, post processing and evaluation of recorded


Radio, audio, visual, sensitivity data

Transmission frequency 0.00 kHz
Audio output yes
Visual display yes
Depth indication 6m to 7m
Sensitive adjustment
Ground balance
Connectivity yes

Power supply data

Battery 4x 1.5V batteries (LR20) or 4x 1.2V NiMH
Low battery alert
Operating time 0.00 hours
Operating time information 8h for1-channel solution constant usage

Dimensional data

Length 1250.00 mm
Weight 4.10 kg
Search head size 550.00 mm
Shape 550mm sensor distance probe
Transport case provided
Transport case information rugged case
Transport case weight 8.50 kg

Factory support data

Factory support 24/7 through worldwide network
Warranty 2 years
Water resistant
Temperature limitations Control unit: IP65 , probe IP68


Base price 0.00 €
Reduction for higher quantity please contact
Possible to rent
Price for training please contact


Additional equipment Multi probe holder up to 8 fluxgate probes Wheel set GEOMETRICS® 824 A sensor Probe holder for GEOMETRICS® 824A sensor GPS antenna mount Borehole detection kit Waterproof probe cables up to 100 m Headphone
FEREX 4.034


Microsoft Word - 4034_PI_EN_FEREX_MIL_REV0420.docx
4034 PI EN Borehole Acc REV0118
FEREX 4.034