Can you Increase

[jeric2]

I recently saw that they've now come out with metal detector sandels, but the complaints are that you almost have to touch the coil in the sandel with the coin or smaller objects for it to activate the vibrator and light. What can be done to increase the depth of these devices??

 

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[Sky Pilot]

Jeric2, skypilot02 here! I suppose one would have to get a pair and disassemble them, to see what one had to work with, and take it from there. Regards, Richard