The new Spectra Precision GL422N is a fully automatic, dial-in self levelling dual grade laser designed for high precision civil construction, roading/grading, drainage, earthmoving contractors etc.

The automatic, self-leveling Spectra Precision GL422N laser is the most rugged, cost-effective option for dual grade laser that can do three jobs - level, grade, and vertical alignment.
Even in harsh jobsite conditions, the GL422N delivers consistently reliable and accurate performance,enabling you to work faster and smarter.

Each GL422N laser system now includes the advanced HL760 Digital Readout (DRO) receiver that provides automatic Grade Match, PlaneLok and Fingerprint function.

PlaneLok
The PlaneLok function atomatically locks the GL422N laser onto the HL760 recevier at an existing elevation or vertical alignment point. This eliminates all drift or possibility of error due to improper calibration or weather. Should the receiver location be moved slightly, the GL422N will continue to stay locked onto the level location of the recevier.

GradeMatch
The Grade Match function searches then locks onto the HL760 receiver, then measures and displays the existing grade over unknown ground, eliminating time consuming and error prone calculations, time spent searching for grade plans, and over excavating.

Fingerprint Technology
The unique "Fingerprint" function of the new GL422N allows pairing of the laser and HL760 receiver. It only accepts the beam from the laser it is paired with eliminating levelling errors from detection of other laser beams.


The Spectra Precision GL422N dual grade laser is covered by a 5 Year manufacturers warranty.

Once shipped from the manufacturer, Accurate Instruments' Calibration and Service Centres check and adjust all instruments on collimators and ranges, then fit them with the appropriate shockwatch, calibration sticker and issue a test calibration certificate.

Shockwatches a damage indicator that alert the user whether the instrument has been dropped.

The Spectra Precision GL422N is checked, calibrated and certified by Accurate Instruments then fitted with a shockwatch.