Bosch PRO GRL18V-4-34CVG Rotation Laser, LR 45 Receiver, Bracket & L-BOXX 374 Case

The Bosch PRO GRL18V-4-34CVG 18V Green Rotation Laser is a highly versatile and robust professional levelling solution engineered to improve accuracy and efficiency across demanding construction applications.

Combining an impressive working range, intuitive slope adjustment and rugged jobsite protection, it is ideally suited to pipe installation, ramp construction, suspended ceilings, wall partitioning and other large scale levelling tasks.

The GRL18V-4-34CVG offers a working range of up to 400 metres in diameter when used with the compatible Bosch LR 45 receiver. Horizontal accuracy is rated at ±1.5mm at 30 metres, while vertical accuracy is ±3mm at 30 metres, delivering dependable precision for professional applications.

Its green 360° laser line provides excellent visibility, helping users work confidently across challenging environments.

A standout feature is the intuitive dial in slope adjustment, which enables slopes of up to ±15% to be set quickly and accurately. This makes the laser particularly effective for single slope applications such as installing pipework and constructing ramps.

A bi colour LED keypad clearly communicates the laser's operating status and remains easy to identify from a distance, helping professionals work efficiently across larger sites.

The extended ±15%, or approximately ±8.5°, self levelling range simplifies setup, while selectable rotation speeds of 150, 300 and 600rpm allow performance to be adapted to different applications.

Bluetooth connectivity with the Bosch Levelling Remote App adds even greater control, allowing users to adjust slope settings and access additional functions including sweep, speed and sleep modes remotely.

Built for demanding construction environments, protective handles and a reinforced top cap provide excellent impact resistance. An IP66 rating delivers substantial protection against dust and water, while 1.5 metre tripod tip over resistance provides additional reassurance on challenging jobsites.

Dual power capability adds further versatility, allowing the GRL18V-4-34CVG to operate from Bosch Professional 18V lithium ion batteries or four C cell batteries using the BA 18-C adapter.

This combination of precision, durability, connectivity and flexible power makes the Bosch GRL18V-4-34CVG an outstanding rotation laser for demanding professional levelling applications.