* Laser diode: 640 nm, < 1 mW * Operating temperature: -10 – 40 °C * Storage temperature: -20 – 70 °C * Laser class: 2 * Working range: 40 m * Working range with receiver: 80 m (Diameter) * Working range without receiver: 40 m (Diameter) * Accuracy: ± 0.2 mm/m * Self-levelling range: ± 4° * Levelling time: 4 s * Dust and splash protection: IP 54 * Power supply: 4 x 1.5 V LR03 (AAA) * Operating time (max.): 18 h in 1-line mode * Tripod thread: 1/4", 5/8" * Projection: 3 x 360° line