With the crazy economy we find ourselves, my son and I ended up doing our own AC repair. We replaced our A-Coil and outside condenser unit with all the filters, fittings, etc. We also decided to use the solder with flux method as opposed to the silver rod brazing method. We were successful just before the hot muggy weather overtook our part of the country. This guage was the recommendation for us to measure the vacuum test on our system. It required some careful reading, but the learning curve was reasonable and it played a critical part in our ability to confirm the vacuum on our system. I would buy this - rather expensive guage - again to ensure I had all the right tools for this job.

This replaces a fieldpiece micron gauge I have. Over the years, I've learned its usually best to by the US branded it. This one is well built compared to the fieldpiece unit which got wet. Well built, high quality, and worth it.

Nice piece of equipment. Easy to use. Just a bit power hungry, so you need to only leave it active when you need it. (Often you need to pull a vacuum for an hour or so.)

Works well so far. Digital is nice for leak checking.

Bought this guy back around the end of 2020 when the micron gauge built into my gauges quit on me. After 3 years and probably close to 1,000 uses, something finally failed internally and it reads "low battery" as soon as it's powered on. This thing was tossed around, rained on, had refrigerant shot into it (tired techs make silly mistakes) and still gave me 3 good years.