Posted 5/23/2020 23:55 (#8276318 - in reply to #8276198) Subject: RE: Spectra dual slope laser
We always check ours before starting a tile job. Set it up and let it level, take a measurement from a repeatable spot, turn the laser 1/2 turn, let it relevel and measure from the same spot as before. Should measure the same both times. We usually check it at 300ā and it will be within 1/10ā. As long as yours is calibrated it should be good to use Iād think.