Review on 🔌 69020 Digital Coupler by YELLOW JACKET by Cody Stroop

I bought one and after a short time it only showed 5 microns. It had to be replaced, and the second after no more than 10 uses, now it doesn't show anything, just a line from the start. Neither hold a vacuum, it doesn't bother me, but I at least want to read something. Unfortunately. I think the third one will be good and useful.