Spectra Precision GL622N Grade Laser + HL760 Receiver + RC602N Remote - Rechargeable, with Automatic PlaneLok & Grade Match

Our Spectra Precision GL622N dual-grade laser provides automatic horizontal and vertical self-levelling with digital grade adjustment on both the X and Y axes. It establishes level, slope, and vertical alignment references for excavation, drainage, concrete work, and general construction.

We supply this Spectra dual slope laser with an HL760 digital readout receiver and RC602N radio remote control. The receiver displays the distance from the on-grade position, while the remote repeats the laser’s menu and controls from a distance. Compare our grade laser levels when selecting a system for single- or dual-axis grade work.

Spectra GL622N Dual Grade Control and Specifications

The GL622N provides a compensated grade range from −25% to +25% on both axes, although the two axes are not set simultaneously. You can enter the required gradients through the menu for applications such as driveway falls, ramps, sports surfaces, steep-slope excavation, and drainage.

Key specifications include:

• Levelling accuracy: ±0.5mm at 10m.
• Grade accuracy: ±1.0mm at 10m.
• Operating diameter: approximately 800m with a detector.
• Self-levelling range: approximately ±14°.
• Rotation speeds: 300, 600, and 750rpm.
• Environmental protection: IP67-rated housing.
• Operating temperature: −20°C to +50°C.

Automatic horizontal levelling supports elevation checks and grade setup. Vertical self-levelling provides a reference for wall, column, and form alignment, as well as 90° layout and anchor bolt positioning.

GL622N Automatic Grade Match, PlaneLok and Axis Alignment

Automatic Grade Match measures an existing gradient between two known elevation points and displays the result on the laser and remote. This can help when matching an existing driveway or surface where the required fall is not already known.

PlaneLok keeps the laser beam aligned with a fixed receiver position, helping maintain a horizontal elevation or vertical reference during the task. The HL760 also uses Fingerprint technology to recognise the paired laser and reject signals from other instruments.

Automatic Axis Alignment adjusts the GL622N’s grade axis towards a selected reference point. The anti-vibration filter can be set for conditions involving wind, tall tripods or other site vibration. Mask mode switches off selected beam sectors to limit reflections or interference from nearby lasers.

Spectra GL622N RC602N Remote and Rechargeable Kit

The RC602N radio remote provides control from up to 150m, allowing you to enter grades, select functions, and monitor settings away from the transmitter. The rechargeable NiMH battery pack provides approximately 35 hours of operation.

The package includes the GL622N laser, HL760 receiver, C70 receiver clamp, 105516 vertical adapter, RC602N remote, Q104667 NiMH battery pack, Q104781 worldwide charger, carrying case and operating manual. Use the receiver with a suitable levelling staff when comparing elevations across the working area.

For single-axis grade work, compare our Spectra Precision GL612N single grade laser.

Order Your Spectra Precision GL622N

Order your Spectra Precision GL622N dual-grade laser online, or call us on 01 801 1335 for advice on grade settings, receiver functions and compatible accessories.