Simple and compact for rugged environment

The GLL 50 G Professional is what you really need for essential levelling applications. With 1 horizontal and 1 vertical line in Bosch Green Laser Technology, it is the simplest way to achieve precise levelling results even in brighter conditions. Through the durable yet compact design, the tool offers IP 55 rated protection and great user intuitiveness for your everyday hard work.

Engineered by the state-of-art Bosch Green Laser Technology, it ensures superior level of laser line visibility and sharpness even in brighter conditions.

Thanks to the impact absorbing body and robust housing architecture, the GLL 50 G Professional enables IP 55 rated protection and better grip on ground.

Green Laser Technology with optimum visibility Compact design for convenient handling Easy operation with only one switch

Dual power source of BA 3.7V 1.0Ah Li-ion battery or traditional AA alkaline batteries Highly durable thanks to IP 55 rated protection
Fast and easy alignment with bright green laser lines







Technical data
Power supply 2 x 1.5 V LR6 (AA)
Laser diode 500  540 nm, < 5 mW
Tool dimensions (height) 87 mm
Operating temperature -10  40°C
Laser class 2
Accuracy ± 0.6 mm/m* (*plus use-dependent deviation)
Tripod thread 1/4"
Storage temperature -20  70°C
Tool dimensions (width) 64 mm
Working range, sign up to
Colour of laser line green
Projection 2 lines
Working range, value 15
Dust and splash protection IP 55
Tool dimensions (length) 87 mm
Weight, approx. 0.3 kg
Self-levelling range ± 3°