Display: 5-digit, 9999.95 m/cm Digits: 7.0 mm high, white on black 1st roll = double roll with graduation marks Housing: grey Drive shaft: protruding on both sides, Ø 7.0 mm Direction of rotation: I, away from the viewer Counting method: 2 revolutions = 10 numbers added together Zero position: reversible push lever, mounted on the left