Review on BESYL Portable Refrigerant Detector WJL 6000 by Sean Castator

I was pretty sure my mini split system was leaking. I got a tester and found 2 leaks (on the service valve set screw and on the schrader valve). None on the flare fittings (where I thought they were supposed to be). Finding the leak was very easy and the product works exactly as advertised. The tester was ordered on Saturday morning and I checked for leaks on Sunday evening.