Very sensitive bubbles at this level; The liquid used must have a lower viscosity because the bubble moves quickly when micro-adjusting. It can be a bit of a chore trying to get it "right", but I also don't have to wait for my slower level bubbles to settle into place. The magnets are strong enough to use a spirit level and adjust with a hammer and it won't fall off. Exactly what I wanted and at a good price!
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