Technical Specifications Working Range: 30 m Working Range with Receiver: Up to 120 m Number of Lines: 3 × 360° lines Beam Colour: Green Levelling Accuracy: ±0.2 mm/m Self-Levelling Range: ±4° Levelling Time: 4 seconds Laser Class: Class 2 Laser Wavelength: 500–540 nm Power Source: 12 V Li-ion battery / 4 × AA batteries with adapter Operating Time: Up to 6 h with Li-ion / 4 h with AA in 3-line mode Tripod Thread: 1/4' and 5/8' Protection: IP54 Weight: Approx. 0.9 kg Bluetooth: Yes Compatible Receiver: LR 7 Bosch confirms the 30 m working range, 120 m range with receiver, ±0.2 mm/m accuracy, green 3 × 360° laser lines, dual power supply, Bluetooth, IP54 protection and 1/4'/5/8' tripod threads. Description Line Laser Bosch GLL 3-80 CG Professional is a high-visibility 3 × 360° green-line laser designed for precise horizontal and vertical levelling around an entire room. Its green laser lines provide excellent visibility, while the tool automatically self-levels within ±4° in approximately 4 seconds. With a compatible LR 7 receiver, the working range can reach 120 m. The tool also supports Bluetooth connectivity for remote control and contactless adjustment, making it convenient for professional installation and alignment work. Ideal for: Suspended ceilings, drywall framing, tile installation, floor installation, window fitting, shelf mounting, drainage-pipe alignment, interior fitting and general construction work.