Technical Specifications Working Range: 15 m Working Range with Receiver: 15 m Projection: 3 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 Diode: 630–650 nm, <1 mW Power Supply: 4 × 1.5 V AA batteries Operating Time: Up to 24 hours Weight: Approx. 0.72 kg Tripod Thread: 5/8 inch Protection: IP54 Bosch's current India specification confirms the 15 m range, 3-line + plumb-point projection, red laser, ±0.2 mm/m horizontal and ±0.3 mm/m vertical accuracy, ±3° self-levelling and AA battery operation. Description Line Laser Bosch GLL 3-15 X Professional is a precise 3-line laser level designed for professional interior fitting and alignment applications. It projects one horizontal line, two vertical lines and one plumb point, allowing accurate horizontal, vertical and point transfer work. The 360° rotating platform with fine adjustment helps position the laser lines precisely, while Bosch's Pendulum Precision System provides reliable levelling accuracy. Ideal for: Tile installation, drywall fitting, window and door installation, interior decoration, alignment, levelling, mounting electrical fixtures and general construction work.