I have been using the JB SuperNova for the past two years. I would recommend this vacuum gauge to everyone. I've had no trouble with this tool and have found it superior to every other micron/vacuum gauge I've owned over the years.
It's that it performed in a manner that was unsatisfactory, and it wasn't cheap :-P
All I'm gonna say about JB is:
If their just better, I wanna know what the hell is worse.
I understand the lingo, I like to know what made him unhappy with the gauge, did it read high?low? non at all?un-accurate perhaps? Again been using mine for two years with 0 problems and I test it regularly.
Screen would stick
Failed to reach atmosphere on regular basis (Cleaned regularly)
I think I had a dud!
I ran the two side by side, and the blu pulled down to 400 while the nova was still in the 1000 range.
What ticked me off the most was trusting the nova on the job for so long before buying the blu and the troubles involved (the leaks I thought I had)
I almost gave up on micron gauges after that. I figured that if $200+ couldn't buy a decent gauge..........
Buying the bluvac revived my faith and helped me revamp my set-up
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