Lasers launch hits right level

Trimble has announced the new Spectra Precision GL412 and GL422 Grade Lasers

Trimble has announced the new Spectra Precision GL412 and GL422 Grade Lasers.

According to the company, the lasers are rugged, cost-effective and can perform three types of jobs for construction contractors - levelling, grading and vertical alignment with plumb.

The lasers require no manual levelling. They send a continuous, self-levelled 360° laser reference over an entire work area, and feature a grade range of -10% to +15%, so they can be used for a range of slope applications. They can withstand a drop of up to 1m directly onto concrete, reducing service costs.


Both lasers feature a two-way full-function remote control with built-in backlit grade display. According to Trimble, this allows the contractor to do everything with the remote control, including grade reverse on both axes up to 100m away from the laser. The ability to make grade changes from anywhere on the job reduces set-up time and speeds up operation, especially when multiple job grade breaks are needed.

Additionally, the GL412 and GL422 self-plumb in the vertical position to accommodate an even wider range of applications, such as anchor bolt installation, plus form, tilt-up and curtain wall plumbing.

Both units also incorporate automatic temperature and grade compensation, delivering high accuracy in any weather or geographical location, and no rework.

On both models, the laser beam can be turned off electronically. This capability eliminates interference with other crews on the job site by keeping the beam from straying into other work areas. The lasers can be used with a Spectra Precision HR550 Laser Receiver at an operating diameter up to 800m or with the Spectra Precision CR600 Laser Receiver mounted on a machine for fast, easy machine control display.

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