I work in HVAC and have never had a leak analyzer. I bought this about 3 months ago. It worked well, I think sweeping too fast can cause you to miss leaks. I got wet because my nose was in the water. I think if you know what's going on you should keep your nose down! Otherwise you have the same problem as me. Mine is now beeping randomly and with no refrigerant in the air. It has a tiny tube inside an outer flexible tube. I'm afraid water got in there. And that hasn't been the case for (about 10 days). So do not let it get wet under any circumstances and above all do not let it drip through the hose into the measuring device. I just hope mine dries up and works again.
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