Review on 🌡️ AURELIO TECH 3 Way AC Manifold Gauge Set: Ideal for R134A R12 R22 and R502 Refrigerants, with 5FT Hose, Acme Tank Adapters, Quick Couplers, and Can Tap – Includes Instruction Manual by Donny Collins

I don't use them every day so I might not be the best judge but I think they work as they should. I figured my son's 2009 Sentra wasn't cold enough, so I bought an empty bottle from the store with a built-in pressure gauge. It wasn't working as planned and I was overcharging the AC system resulting in a short cycle (the compressor was on and off all the time). I needed that set of sensors to get it working again and it did the job. It came with all the parts you needed including a faucet which some didn't have. It also had some really basic instructions but they were all I needed. I would buy again if necessary.