Technical Specifications Working Range: 15 m Working Range with Receiver: Up to 50 m Number of Lines: 5 lines + 1 plumb point Beam Colour: Red Horizontal Accuracy: ±0.2 mm/m Vertical Accuracy: ±0.3 mm/m Plumb Point Accuracy: ±0.7 mm/m Self-Levelling Range: ±3° Levelling Time: <4 seconds Laser Class: Class 2 Laser Wavelength: 630–650 nm Power Supply: 4 × 1.5 V AA batteries Operating Time: Up to 24 hours Weight: Approx. 0.54 kg Tripod Thread: 5/8 inch Protection: IP54 Bosch specifies the GLL 5-50 X as a 5-line laser with one plumb point, 15 m standard range and up to 50 m with a compatible receiver. Description Line Laser Bosch GLL 5-50 X Professional is a compact and robust 5-line laser level designed for accurate interior alignment and levelling. It projects two vertical 90° lines, one horizontal line and plumb points, making it suitable for precise installation work. The Bosch Pendulum Precision System provides reliable self-levelling within ±3°, while the rotating platform enables fine adjustment of the laser lines. Ideal for: Tile installation, drywall work, ceiling installation, partition alignment, electrical installation, window/door fitting, interior decoration and general construction.