When you received the FARO LLP there should have been a small Kinetronics Lens Cleaning Cloth kit in one of the side pouches in the carrying case. To clean the lens of the LLP, use this cloth without liquid application. This is to clean the outside lenses of the LLP. If the mirror inside the Laser Line Probe appears to be dirty you will want to contact FARO Support and schedule a cleaning and certification.
If you do not have a Kinetronics Lens Cleaning Cloth kit, you can purchase them at any camera utility store or you may contact FARO Technologies and request one.
Keywords: llp, laser line probe, scanarm