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I've always thought that lasers were 100% acurrate?

Well....

It depends on how much money was spent on the lasers optics, the bearings it may spin on and the leveling system.

Most of the lasers we own have a published accuracy of 1/4" per 100' feet.

For my work a 1/4" per 100' is plenty accurate.


Bob Badger
Construction & Maintenance Electrician
Massachusetts