Review on PIC 101D 158C LEFT Connection Pressure Internals by Bobby Plymell

I bought this to replace the gauge on a small tire compressor and the thing is complete crap! It moves +/- 5psi with just the slightest vibration. It seems to give correct readings when seated so I won't be returning it as I can disable the little tire pump and have at least a vague idea of how it's intended for emergencies, but I'd definitely find something better!