Electronic Alarm System

Let’s build a legal security barrier that shocks anybody that touches it, and will trigger an alarm if cut, climbed, shorted, torn down or tampered with. As a bonus, it will also notify us if the voltage falls below a certain threshold.
An electric security fence, or array, can be freestanding, placed atop a wall, or attached to an existing fence. Since most electric security arrays are added to the inside of a chain link fence, that’s the example we’re going to use, but the principles are the same.
Electronic Alarm System