Magnetic Switches in Driveway

165

01:24:17

By your garage door you may have button to push to raise garage door and push button to lower garage door.

Underground concealed reed switches  in driveway known to home owner and connected to push button inputs of garage door opener can be activated by car with push button controlled  electromagnet under car floor board.

Alarms, lighting, or other devices could be activated with hidden driveway magnetic switches.

published 10 years ago

rich11292000

10 years ago

To the bat cave

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