How to Harvest a Piezo Element From a Window Alarm

In this short instructable I will demonstrate how I harvest Piezo elements from dollar store window alarms.  Why you ask? Because these things are awesome pickups for guitars or any other acoustic instrument you are building. Also I am doing this to answer a question from a viewer of one of my instructables https://www.instructables.com/id/How-to-build-an-Electric-Guitar/. 

Open the battery compartment and remove the screw that holds everything together. Pull the back off. Pull the circuit board out and isolate the wires to the piezo.

In the movies they would be sweating over which wire to cut first, no such issue here, cut them both at the same time.

OK, this is the only tricky bit, cutting the plastic housing to get the element out without bending it. A little bend won't hurt anything but you don't want to crack that white disc in the middle.