Fieldpiece MG44 - Wireless Vacuum Gauge

Just got it in the other day and quickly found that my gages are leaking (no surprise there). I then connected it directly to my pump and found that it would pull down to ~40 microns and then flare up to 750 and pull back down. Found an O-ring that was getting sucked in at low vacuum (and leaked) so I fixed that and re-sealed two other O-rings on the pump. Then lubricated the rubber seal on the ballast valve. Next thing you know, pump pulled straight down to 27 microns very quickly with no spikes or rise. So that straightened my pump out right off the bat. I also know that the oil in the pump is good. Haven't yet connected it to my car but I already know this is a *good* unit. Spend the extra $50 or $100 and get this one. I tried a cheaper one and returned it. This is the *right* one to get.

El medidor de aspiración inalámbrico funciona de manera muy precisa y rápida. La pantalla es clara y los botones son intuitivos, lo que facilita tomar lecturas sin complicaciones. La batería dura bastante tiempo y la construcción se siente robusta, ideal para trabajo profesional o uso frecuente. Me ha resultado muy útil para medir sistemas HVAC y comprobar aspiraciones sin depender de cables. Recomendado para técnicos o aficionados que buscan confiabilidad y comodidad en sus herramientas.

This tool is awesome. It reads microns great, the bluetooth to the phone enables you to do other things and still watch progress. Highly recommended this product!!!

Very glad I bought them, great investment for the tools. No more refrigerant burns from high pressure in the hoses, struggling to get hoses off. And a great addition to the set is the field piece micron gauge. Guarantees no leaks and proves the holding under 1000 microns or less in ten minutes of letting it sit. I put the micron gauge on the high side, and pump directly from the saturation line. Proves every time

Good, needs to be cleaned often but that seems to be the norm.