[mta]

Actually, you can just put the sensor inline with the power cables for the compressor. lilke This:

-------------------
= -sensor
|
x -compressor
+++++++++++++++


because if the sensor reaches over 115 psi it will return a zero, efectivly stopping the power to the compressor. This is what our team did on a practice build. it worked great.

There is actually no need to connect the sensor to the controler board at all. It works just a like a switch.