The board comes assembled and tested and with enough wire to make one coil of any shape and size to suit the required application. Output is via three SPCO relays with adjustable delays on/off up to 30 seconds, and a small speaker can be connected for setting up. Details of how to build and set up several Aperture type detectors can be found on the companies website www.easytreasure.co.uk/aper.htm
Essex Metal Detectors.
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