Review on CC091 Gas Leak Detector: Propane, Methane & Natural Gas Sniffer with Gooseneck Sensor - Adjustable Sensitivity for 50-10,000 ppm - Audible & Visible Alarm by Mohmed Burt

Inexpensive mind. I just passed the annual gas inspection with the gas company (required in RI). I only tried this for use with my combustion analyzer. Didn't think I'd find anything but just for fun I tried it, it's very delicate, I found a leak from a small compression fitting. I've tried several times in disbelief. Took a bladder tester and found a bloody leak. Tightened the screw and checked again. there is no more leakage. Very easy to use and accurate.