Made in Germany   Made in Germany   Detection Technologies since 1998

VLF emitter - Improves your metal detection

VLF emitter
One out of 4 VLF emitters to improve the results with OKM metal detectors.

Our metal detecting accessories are compatible with many OKM metal detectors and are used to optimize the measuring process and support the analysis of the targets.

VLF is the shortcut for Very Low Frequency which is a low wave frequency range. Usual VLF (Emitter) devices use a frequency in this range to send out an alternating magnetic field into the ground, which can be disturbed by a metallic target. This disturbance of the magnetic field can be analysed in detail and so it is possible to make a conclusion to targets situated under the ground.

Advantages of the usage with FS Future Series

VLF emitters are optional components which can be used to optimize a measurement with FS Future Series instruments. VLF emitters send out very low frequencies to reinforce the magnetic field. Because of this amplification anomalies of the underground like metallic targets (gold, silver, copper etc.) becomes better visible.

3d graphics without vlf emitters
The figure on the left side shows a located metallic target without using VLF emitters. The structure of the object is destroyed and not very accurate.
3d graphics with vlf emitters
The figure on the right side shows the same measurement while using VLF emitters. The shape of the located target looks much clearer, also the background is straightened.

The 3d image of the underground becomes more clearly than without using the VLF emitters. So you can better recognize the shape and structure of buried metals.


One set of VLF emitters consists of 4 units which have to be placed on the ground, in every corner of your measuring area. Remove the antenna of every VLF emitter and place it on the ground in a distance of about 50 cm from the main unit. Adjust every emitter to your current ground conditions and power it on. Now measure your area with a FS Future Series device in operating mode Ground Scan like usual.

Using the vlf emitters is very easy to do.

  VLF Emitter (German)

File: VLF_Emitter_DE.pdf
Size: 169.85 KB

  VLF Emitters (English)

File: VLF_Emitters_EN.pdf
Size: 370.97 KB

  VLF - User's Manual (english)

File: VLF_Manual_EN.pdf
Size: 1.83 MB

  VLF - Benutzerhandbuch (deutsch)

File: VLF_Manual_DE.pdf
Size: 1.83 MB

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)
250 x 220 x 170 mm
about 7,4 kg
Frequency Range
7 kHz - 60 kHz
Amplified Output Power
10 W
Internal Battery
24 V
Operating Time (full charged battery)
about 3 h
Charging Time
about 10 h
Maximal Sphere of Action
about 10 m

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