Notice how the sensor comes apart.

I didn't and broke one of the plastic

pieces. To disassemble put a small

screw driver into the obvious little tab

on the bottom and pry the large plastic

The above is the pressure transducer.

Notice the separation/delamination

Holding collar with pressure transducer detached.

The pressure transducer is

reglued to the holding collar.

The piezo cell above is capable of producing large voltage potentials. These are rectified

and captured by circuitry which stores the

charge. The storage device is a 22uf cap. I

think these caps start to electrically leak

inside. This leakage would cause a lack of

sufficient charge to build up such that the

transmitter part of the device would not

This is a demonstration of the voltage swing