The LT-PLM Series from Laser Components are Precision Laser Modules that operates at 532 nm, and 635 nm. They deliver an output power of 1 mW and produces a dot-shaped laser beam which deviates after a distance of 20 m by less than 1 mm from its mechanical axis. These laser modules have an extremely low beam angle error of 0.05 mrads and are suitable for alignment tasks. They require a DC supply of 4.5-30 V and are integrated with a rechargeable battery. These laser modules are ideal for the alignment of machines, straightness test of crabs and carriages, concentricity test of rotating parts, and aiming/positioning tasks applications.