Anybody use a digital pressure gauge as a service tool? I get tired of frozen gauges, inaccurate readings, poor scalings on non-pressurized systems, etc... so looking to see if I can put together a relatively robust digital pressure gauge. I know of the expensive pressure gauges, but they are generally designed to be mounted permanently. I know of digital tire pressure gauges, but they are generally designed for air. So has someone figured out this path already and can make a recommendation?