The Spectra Precision GL422N Dual Grade Laser was designed for a wide range of general construction, site preparation and excavations. This ruggedized, automatic slope laser provides contractors with accurate leveling, grading and vertical alignment. It also includes the RC402N remote control and the advanced HL760 laser detector with digital readout of elevation and fingerprint function.
With a working range of up to 2,600 feet, this Spectra grade laser has a grade capability of –10 to +15 percent on both axis. It is also self-leveling horizontally and vertically within ±5 degrees and has an accuracy of 1/16 inch per 100 feet. For anchor bolt and form alignment, the GL422N self-plumbs in the vertical position and can be mounted on a 5/8-11 tripod thread vertically or horizontally.
HL760 Laser Detector
The Spectra HL760 with digital readout of elevation is a highly versatile laser receiver for basic and advanced leveling and aligning applications. With a unique fingerprint function, it is easily paired with the GL422N to detect only its laser beam and avoid conflict between other laser levels working in close proximity. This laser receiver also provides automatic grade matching and PlaneLok to eliminate manual slope adjustments and errors due to improper calibration or weather. The Spectra CR600 laser receiver is also an option when a machine mounted display elevation is required.
Spectra RC402N Remote Control
The RC402N full-function remote control comes standard with the GL422N grade laser and offers an easy to use menu-driven interface. With a working of up to 330 feet, this radio remote gives the ability to make long-range grade changes and automatic alignments.
The Spectra GL422N has an out of level alert that shuts off the grade laser if it is knocked out of place to prevent inaccurate readings. It also has a selection of sensitivity for accurate results even in high winds or on high vibration jobsites.
With an IP66 rating, this laser level is dustproof and can be used in heavy rain. It can also withstand drops of up to three feet onto concrete and tripod tip overs up to five feet. This slope laser uses NiMH batteries and works up to 35 hours of continuous use.
This Spectra dual grade laser package comes with a HL760 laser receiver, RC402N remote control, rod clamp, small carrying case, rechargeable battery pack, charger and a 5-year manufacturer’s warranty.