Technical data Laser transmitter   Sheave diameters Ø 60 mm and upwards    Laser class 2 Laser output power < 1 mW Laser wavelength 635–650 nm  Beam angle 60°  Accuracy Laser plane – Reference area:  Parallelism: < 0.05°, Offset: < 0.2 mm Type of battery 1xR6 (AA) 1.5 V Operating time 8 hours continuously Material ABS plastic/Hard anodised aluminium Dimensions WxHxD: 145x86x30 mm Weight 270 g     Detector unit   Displayed resolution Axial offset: 0.1 mm. Angular value: 0.1°  Max. displayed error ±1 %  + 1 digit  Measurement distance Up to 3 m between transmitter and detector Measurement range Axial offset: ± 3 mm. Angular value: ±3° Type of battery 1xLR61  9 V Operating time 24 hours continuously Material ABS plastic   Dimensions WxHxD: 135x56x46 mm Weight 220 g   Shaft alignment Sheave/pulley alignment D90 D130 D150 D160 Geometric measurement Shims Custom systems