Review on Testo 550i Kit: App-Controlled Digital Manifold with Thermohygrometer and Clamp Thermometer – Ideal for AC, Refrigeration Systems, and Heat Pumps with Bluetooth Connectivity by Derrick Patterson

If you are a professional use this for troubleshooting/commissioning only. THAT'S ALL! You must have a separate set of vacuum hoses for different tonnages. Separate setup for recovery. A bunch of pressure gauges with female Schrader adapters (mini sets, like when you make ice cream makers). I do cold rooms/dry rooms/clean rooms etc and you can't have a preburner that leaves carbon etc in the manifold. If you still evacuate with a collector system, you will not understand anything of what I am saying here. It's money in the short term, but the initial investment will save you a lot of money in the short term. My Testo 550 is still perfect after years of trouble-free operation. I'm only buying this because of the release of new refrigerants (R32 and others). not on the chip). I'm literally selling it cheap to a student who doesn't care because it's in such good condition. Why would you leave $400 on the wall of a major urban neighborhood? Only thieves know that selling is expensive! "Corporate" Vacuum Pump/Fieldpiece Micrometer/Appion Core Tool and Hose for $75.00, bad enough you have to leave that in place! You wouldn't leave a $400 manifold on the side of a unit overnight!