Description Spectra Precision® GL622N Grade Laser — Easy-To-Use, Full Featured Automatic Grade Lasers. The GL622N Dual Grade Laser is rugged, automatic self-levelling laser with grade capability from -25% to 25% and can be used for a wide variety of grade, excavating and alignment applications by general and speciality contractors. The GL622IR is a Class 1 laser. This type of beam is required in special applications where a visible beam is a safety hazard, distracting or otherwise is not permissible. Includes: GL622N Dual Grade Laser, RC602N Remote Control, HL760 Laser Receiver with C70 clamp, HL760 user guide, Q104667 NiMH Battery Pack, Q104781 charger, Vertical Adapter for HL Receivers, Carry Case and Operating Manual.
