Digital headlight alignment check: fast and accurate, with future-proof lighting system support. The HTD 815 is a headlight alignment device that operates based on a CMOS camera and is designed to test all popular types of headlight beams. The device features an automatically controlled program and manually selectable functions for adjustment work. It is robustly built and designed for use in an automotive workshop. The measurement process is fast and accurate, thanks to the use of a high-quality optical system and laser technology.