It works well and is very inexpensive. It can collect various refrigerants and CFC propellants. The sensitivity is adjustable. When the device detects freon, it starts beeping. It is very easy to use and has a flexible gooseneck probe. Requires 4 AAA batteries (not included).
Lichamp Automotive R1234YF Installer Standard
9 Review
π¬οΈ UView Airlift Cooling Checker 550000
9 Review
VIVOHOME 220LB HVAC Electronic Digital Refrigerant Charging Weight Scale β High Precision with Protective Case
9 Review
Robust Robinair (RG3) Portable Refrigerant Recovery Machine, 115V, 60Hz -Efficiently Recovers Liquid and Vapor Refrigerant
9 Review