Technical data Laser transmitter   Pulley diameters Ø 2.5 " (60 mm) and upwards  Laser class 2 Laser output power < 1 mW Laser wavelength 635–670 nm  Beam angle 60°      Accuracy Laser plane – Reference plane: Parallelism: < 0.05°, Offset: < 0.008" (0.2 mm)  Type of battery R6 (AA) 1.5 V Operating time 8 hours continuously Material ABS plastic/Hard anodised aluminum  Dimensions WxHxD: 5.8"x3.4x1.1" (145x86x30 mm) Weight 8.6 oz (270 g)     Detector unit   Measurement distance Up to 9.8' (3 m) between transmitter and detector Measurement range Axial offset: ± 0.12" (3 mm). Angular value: ±8° Material ABS plastic/Anodised aluminum  Dimensioner WxHxD: 3.7"x3.7"x1.4" (95x95x36 mm) Weight 6.0 oz (170 g)     Display unit   Display 2 row backlit LCD Displayed resolution Axial offset: 0.005" (0.1 mm). Angular value: 0.1°  Type of battery 1xLR61  9 V Operating time 24 hours continuously  Material ABS plastic   Dimensions WxHxD: 3.1"x4.7"x0.9" (78x120x23 mm) Weight 6 oz (170 g)     Cable   Length 78.7" (2 m)   Shaft alignment Sheave/pulley alignment D90 D130 D150 D160 Geometric measurement Shims Custom systems