ALLOSUN Ultrasonic Leak Detector Transmitter Air Water Dust Leak Detector 36-44KHz Valve Pipe Crack Locator Refrigerant Halogen Gas Leak

The product is very good I recommend buying it for HVAC. My only problem with this kit is the original headphone that comes with the set is very very week even when I turn the volume to maximum the sound is very week. After I changed the headset to ( JVC PC headphone ) the sound was very good and clear so at the end I would recommend buying the kit but keep in mind you need to use your own external headset.

I bought this unit to find leaks in fridge evaps it does work you have to pressurized with nitrogen to find them other brands you can find them with out nitrogen using gas already in system I do like transmitter you can find air leaks in Windows and leaks in cars as well

Works great for what I needed it for. Detected a few small leaks I’ve been hunting down. I found tons of other uses for it, especially with the ultrasonic emitter that was included. Using both I was able to fix all the leaky seals on my windows and doors that would have been very hard to find otherwise. One star was removed because the screw on microphone came loose from the protective shell, however a quick shot of superglue and it was good as new. I wish it came with a parabolic fitting for wider areas but the included accessories got the job done with no problems.

Is not working as advertising

I got the product and it comes in a nice padded case, and is easy to operate. It pinpointed a leak I had been looking for in about 2 minutes.I did have a problem with one of the parts that came with it. I contacted the seller and they took care of the problem right away. I would buy from them again.

It works as discribed over all a good unit

Like this version more than the Amp Phrobe version.

Good product