The Spectra Precision GL622 is a fully automatic, dial-in self levelling dual grade laser designed for high precision civil construction, roading/grading, drainage, earthmoving contractors etc.

With a 'mm' display laser receiver and a 2-way fully fuctional remote control, grade work has never been so quick, precise and easy.

The GL622 also has the added functionality of vertical self levelling.
In the vertical position, the GL622 will self-plumb allowing an even wider range of applications such as such as stringline setout, anchor bolt installation, form, tilt up, and curtain wall plumbing.

Where the GL622 varies compared to other grade lasers with all the added functionality, designed to make the finished work more accurate.

PlaneLok
The PlaneLok function (Y- or X-axis) automatically locks the GL622 laser onto the HL750 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 GL622 will continue to stay locked onto the level location of the recevier.

Automatic GradeMatch
The automatic dual slope Grade Match function (both Y and X axis) searches then locks onto the HL750 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.

Automatic Axis Alignment
This unique feature allows precise automatic axis alignment to a desired point without positioning the receivers 90° perpendicular (+/-40° alignment range on Y- and X-axis).
This means that the plane of the slope is correctly aligned in the direction of the receiver.

Axis Masking
Axis masking eliminates interference with other crews on the jobsite. In this mode, the user can "shut off" any of the 4 glass windows, making the laser emit from just one or two, in direction of their work.

The RC602 remote control supplied with the GL622, offers the advanced automatic features like Grade Match, PlaneLok and Automatic Axis Alignment.
The remote as well as the HL750 'mm' display laser receiver, has an intuitive graphic display which is back-lit for ease of viewing.
Contractors can do everything with the remote control that they can do at the laser keypad, up to 100 meters away even from the cab of a machine.

The Spectra Precision GL622 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 GL622 is checked, calibrated and certified by Accurate Instruments then fitted with a shockwatch.