p Material aluminium /p p Surface epoxy coated /p p Colour red /p p Dimension 59 x 27 mm /p p Profile weight 890 g/m /p p Measuring surface epoxy coated /p p Magnet - /p p End caps 1-c + 2-c /p p Number of horizontal vials 1 /p p Number of vertical vials 1 /p p Measurement tolerance /p p standard position /p p 0.25 mm/m /p p Measurement tolerance of /p p Solatronic module /p p 0.05° at 0° and 90°, /p p 0.10° between 1° and 89° /p p Measurement tolerance of laser ± 0.15 mm/m /p p Power supply 2 x 1.5 V (AAA) batteries /p p Operating time (at 20°C) 16 hrs /p p Laser class 2, DIN EN 60825-1: 2007-10 /p p Output power < 1.0 mW /p p Wavelength 650 nm /p p Protection class IP65 /p