Made in Germany   Made in Germany   Detection Technologies since 1998

We don't manufacture this product anymore.

Grailfinder - Exploration of tunnels and caves

All of our metal detectors and geophysical detecting instruments are part of the "FS - Future Series", a line of our latest technology to detect buried objects and underground structures. Beside the measuring instruments it includes our 3D software which assures a detailed analysis of the measured results.

The Grailfinder is a metal detector with integrated geoelectric.

The Grailfinder is a combined device including geo-electric and electromagnetic pulse method. It combines the functionalities of Rover C and Cavefinder, so that the device includes the following functionalities:

  • Acoustical magnetometer
  • Graphical ground scans (manual/automatic)
  • Automatic cavity measurement with easy "Yes/No" evaluation
  • Graphical control output to a computer

The Grailfinder includes a magnetometer to locate ferromagnetic metals like iron, nickel and cobalt which are situated near to the surface. With the standard probe or the optional available Super Sensor graphical measurements can be made and evaluated and analysed in the 3D software.

Because of the integrated microprocessor technology ground balance, depth measurement and data storage will be performed automatically by the device. The evaluation of the measured data takes place at the computer where the scanned area can be analyzed in a three-dimensional graphic with the help of the 3D software.

Certification Labels
Certified German Detection TechnologyView Certificate

Certified German Detection Technology

View Certificate

Wireless data transmission

Wireless data transmission

Compliance with CE policies

Compliance with CE policies

Here we present some relevant discoveries, which have been located. If you also made a discovery or know somebody who made a fantastic find with our metal detectors, just write us an email or use our online form!

An ancient wine cellar has been located on an old french castle by using the geophysical instrument Grailfinder. This old cave which is estimated from the 15th century by experts and so has an unexpected high historical value, has been located in a depth of 21 meters. Planete Detection IDS has led this professional underground research and located the entrance of this void. By presence of the first french channel TF1 they demonstrated the metal detector Grailfinder, found the cellar and finally went down with the cameramen and discovered 4 big rooms. "It was just wonderful!" so IDS.

  Grailfinder - User's Manual (english)
  Grailfinder - Benutzerhandbuch (deutsch)

In the following table you can see the complete delivery contents and all optional accessories. The used symbols have the following signification:

x times includedx = x times included
not included = not included
optional available, only for additional charge = optional available, only for additional charge
3D software ( standard )Yes1
Control chipYes1
Control unitYes1
Electrode with cable ( 20m )Yes4
External power supply with charger and cable ( 12V )Yes1
USB bluetooth dongleYes1
User's manualYes1
Waterproof and shock resistant Peli caseYes2
3D software ( "Visualizer 3D" )Optional
Super sensorOptional

The following technical indications are medial values. During operation small variations are quite possible.

Control unit

Operating temperature
0 °C - 70 °C
Storage temperature
-20 °C - 60 °C
Air humidity
5 % - 75 %
Dimensions (H x W x D)
430mm x 150mm x 260mm
about 3kg
12 VDC
Motorola, 4 MHz
Data memory (internal)
about 1500 measured values

Data transmission (Bluetooth)

2.4 – 2.4835 GHz
Maximum Transfer Rate
1 Mbps
Receiving Sensitivity
-85 dBm
Maximum Range
approx. 100 m

Computer, minimum requirements

CD-ROM drive
minimum 4x
Interface (Data transmission)
Free disk space
minimum 50 MB
Working memory (RAM)
minimum 256 MB
Graphic card
minimum 128 MB, OpenGL-compatible
minimum 1.2 GHz
Operating system
Windows Vista, Windows 7, Windows 8, Windows 10

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