Laser scanner

A laser scanner system comprising:

• a rotary unit module comprising a rotor that is rotatable around an axis;
• a rotary drive module structured to rotate the rotor around the first axis;
• a light transmitter module structured to transmit a light beam to an object located at a distance from the laser scanner;
• a receiver module structured to receive a reflection of the light beam from the object;
• and
• a processor module structured to process information from the reflection of the light beam;
• wherein at least one of the rotary drive module, light transmitter module, receiver module, and processor module are releasably connected to the rotary unit module.

A method of modifying operational specifications of a laser measuring system, the method comprising:

• providing a laser scanner comprising:
• a plurality of modules;
• wherein properties of at least a first module of the plurality of modules affect the operational specification of the laser measuring system;
• and
• the first module is releasably connected to at least another of the plurality of modules;
• and
• replacing the first module with a replacement module;
• wherein properties of the replacement module are different from the properties of the first module, such that the operational specifications of the laser measuring system are changed by replacing the first module with the replacement module.