Spectra GL522 Duel Grade Laser - HL750 Radio Control Receiver - RC402 Remote Control

Versatile Automatic Grade Lasers for Level, Grade and Vertical Alignment The Spectra Precision® Laser GL512 single grade and GL522 dual grade transmitters are rugged, cost-effective, automatic self-leveling lasers that do three jobs-level, grade, and vertical alignment. Both the GL512 and GL522 include a 2-way, full-function remote control with a built-in back-lit grade display. You can do everything with the remote control that you can do at the laser keypad, up to 330 ft (100 m) away from the laser-even from the cab of a machine! The ability to make grade changes from anywhere on the job greatly reduces setup time and speeds operation. Verbal and visual communication errors are eliminated. The GL512 and 522 Grade Lasers retain all the other advantages of the GL400 series lasers with additional features and benefits. New wireless communication between the HL750 Laserometer and the transmitters provide automatic Grade Matching. Grade Matching allows measurement of unknown grade values between two points. PlaneLok is also available in both the horizontal and vertical planes. PlaneLok automatically locks the beam on the receiver and keeps it on grade. This eliminates all environmental factors that may induce an error. Additionally, the HL750 Laserometer works with another HL750 for long range wireless remote display and monitoring. The Spectra Precision® Laser HL750 Laserometer is a highly versatile laser receiver for basic and advanced leveling and aligning applications. It is designed for general, concrete and site preparation contractors. The HL750 measures elevations across the site, and is ideal for use with any rotating transmitter. RC402 for total remote control. Program the exact percent of grade from .001% to 9.999% GL522 Includes: HL750 Laserometer Receiver RC402 Remote Control NiMH Batteries 110v Battery Charger Jobsite tough carrying case