DigiPas DWL600 24&rdquo; Digital Electronic Level, 0.05&deg; accuracy High accuracy of 0.05 degrees at 0 and 90 and 0.2 degrees all other angles with switchable display between degrees (), slope (%), mm/M, inch/FT User can easily recalibrate back to factory setting with no special fixtures required and programmed temperature compensation ensuring measurement accuracy in the full range of the device operating temperature Illuminated display for low visibility or dark environment with auto inverted display Functions as both a true digital leveling tool or electronic inclinometer/protractor for actual or relative angular measurement with accuracy of 0.05 degrees and display of measurement in % of slope, degrees, pitch of IN/FT and mm/M Buzzer sound at 0 and any programmed halted angles.