Grade Laser Levels

A single grade laser sets a slope in one direction (either the X or Y axis) – ideal for drainage, trenching and pipe runs. A dual grade laser sets compound slopes on both the X and Y axes at once – used for car parks, slabs, roads, sports fields and large drainage catchments.

Auto Grade Match is a 1-button way to set slope. You position the mm display tracking receiver at the height you want, press the button, and the laser tilts its beam to find and lock onto that height – setting the grade automatically. It also lets you match an existing grade across undulating ground, such as a driveway on a hillside.

The DGL1010GM. Dial grades as a percentage on both the X and Y axes to three decimal places (e.g. 1.667%, not 1.7%), with a range of +/- 10.000%. It’s the quickest, most accurate grade setting method in the RedBack range.

Yes – rotary lasers with vertical auto alignment (EGL624GM and DGL1010GM) can be set on their side for vertical rotation, and the mm receiver can auto-track to lock the beam onto the fence line. This lets one person align fence posts over long distances, while the same laser still does everyday levelling work.

It depends on the model and whether you’re using a receiver. Ranges across the grade laser line-up run from 350m radius on the entry-level models up to 500m radius / 1000m diameter on the Class 3 DGL1010GM – all IP66 rated for outdoor work.

Yes. The grade range pairs with RedBack machine receivers for laser-controlled earthmoving – bringing auto grade control to dozers, graders, excavators and skid steers. Speak with us for the right combination for your machine and application.

Divide the fall by the run and multiply by 100. For a 100mm drop over 6m, the grade is (100 ÷ 6000) × 100 = 1.667%. Use our free Slope & Fall Calculator to work it out instantly for any run length.

The “GM” models are the Grade Match range. Not every RedBack rotating laser features Grade Match – only the models with a mm tracking receiver (LR720T / LR730T) and “GM” at the end of the product name: the EL614GM, EGL624GM and DGL1010GM. Press the tracking button on the receiver and the laser slopes up or down until the beam locks onto it.

Anywhere a job needs a designed fall. Single grades cover sewer & stormwater trenching, pipe runs with consistent fall, driveways and access paths, simple drainage lines and general earthworks with one slope. Dual grades cover car parks and large slabs, roads and hardstand areas, sports fields and large drainage catchments. Every model still does everyday levelling work as well.

Yes – that’s the point of the range. Manual slope-setting often needs two people: one at the laser dialling in the slope, one at the staff calling out whether you’ve gone too far. With RedBack grade lasers the slope remote, Auto Grade Match tracking and Digital Dial-a-Grade all work one person, one setup.

Divide the first number by the second, then multiply by 100. So 1 in 60 = 1 ÷ 60 × 100 = 1.667%. Common grades in plumbing and drainage: 1 in 40 = 2.5%, 1 in 60 = 1.667%, 1 in 80 = 1.25%, 1 in 100 = 1%, 1 in 200 = 0.5%. Or punch the fall and run into the free Slope & Fall Calculator.

Electronically, the levelling range is typically ~8-10%, and the DGL1010GM dials digital grades to +/- 10.000% on both axes. For steeper slopes, the EGL624GM and DGL1010GM add Manual Mode – auto-levelling stops so you can tilt the laser to any angle, commonly paired with a Grade Dial Plate (GD12) or inclinometer.

A pipe laser is the same digital-grade idea in a specialised, pipe-mounted format. Set it inside a pipe run, dial the fall, and the beam shoots the right slope straight down the line. The DGL1010GM is the all-rounder for site work; a pipe laser is the better fit if your job is sewer or stormwater laying inside open pipes day in, day out.

Yes. Every model is a full rotary laser level with slope built in – set the grade to zero and it works as a standard levelling laser for slabs, footings, heights and site levelling. The same machine doubles as a standard horizontal rotating laser the rest of the time.

[PLACEHOLDER – Jack to confirm: GREEN624GM inclusion and positioning. Draft answer: Yes – the GREEN624GM pairs the EGL624GM’s Auto Grade Match and vertical auto alignment with a brighter green beam. Currently out of stock; confirm whether to list it here and in the GM grid/tier line.]