Refrigerant leak detector.
<video controls autoplay loop> <source src="https://s3-us-west-1.amazonaws.com/hmt-forum/refrigerant_leak_detector_tp.mp4" type="video/mp4"> Your browser does not support the video tag. </video>
Previously:
https://www.homemadetools.net/forum/...003#post157030
https://www.homemadetools.net/forum/...329#post196344
https://www.homemadetools.net/forum/...312#post188635
