Not only does it work where you can't see, it's sensitive enough to detect smaller leaks than you could with soap, even where where you could do it can see only a few cubic millimeters of gas per minute. I tested it for an AC leak in a neighbor's truck that has been leaking for over a year with no new charge, so a very slow leak and he found the leak right away. The basic operation is very simple. The instructions explain some of the subtleties that are important to know if you're going to be using it a lot. as reliable as the halogenated refrigerants it was designed to detect. One year guarantee. Made in Taiwan.
Robust Robinair (RG3) Portable Refrigerant Recovery Machine, 115V, 60Hz -Efficiently Recovers Liquid and Vapor Refrigerant
9 Review
๐ UView 560000 Combustion Leak Tester: A Reliable Tool for Efficient Diagnosis
9 Review
๐ช Enhanced Universal R134A Valve Core Remover/Installer by Mastercool (81290)
9 Review
๐ฌ๏ธ UView Airlift Cooling Checker 550000
9 Review
Bit and socket set Stels Tool set, 1/2", 1/4", CrV, plastic case 94 pcs, Stels, 94 pcs, black
46 Review
Xiaomi Mijia Ratchet Screwdriver 16 in 1 Screwdriver with Interchangeable Bits, 10 pcs, Black
22 Review
Reversible Mi 16-in-1 Ratchet Screwdriver
21 Review
DVR 70MAI Dash Cam Pro Plus+, black (A500S), black
87 Review