Metal Detector (Assembled)
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Skill Level : Assembled and Tested

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32.95 32.95 USD 32.95


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Description: To come up against an electric cable while drilling a hole in a wall can have catastrophic consequences. Likewise, drilling into gas, water pipes or central heating pipes can be extremely hazardous. With a handy metal detector it can now be determined beforehand whether there are metal objects to be found in a wall, ceiling or floor. An LED indicates if a metal object is in the vicinity. If an audio signal is also desired, space has been provided on the PCB for buzzer type SV4/12-S to be connected. The PCB has been specially constructed to fit entirely into to the separately available box type G407.


  • Avoid disasters when drilling holes in walls

  • Locate pipes, cables, metal studs, etc!

  • Great project for novices

  • Your own unique application

  • Push button operation


  • Metal detecting distance adjustable: up to 3.15"

  • Power supply: 9V battery (not incl.)

  • LED indication

  • 12 VDC-buzzer connection (buzzer not included)

  • Dimensions: 2.2" x 2.5"


  • Hints

    • If you experience difficulties with the calibration of the unit (ie if the LED doesn't turn off, when there isn't any metal present ), replace C1 with a ceramic 1.2nF (122) capacitor. This behaviour is due to a spread on the component values and differences created when winding the coils.

    • For those wanting an audible signal, space is provided on the print for connecting a buzzer type SV4/12-S. The small PCB has been specially designed to be incorporated into the separately available casing type G407.

NOTE: Please allow 24 hours for assembly!

Documentation and Downloads