DESCRIPTION: 3 x 360? bold green lines for optimal visibility. Simply connected. Bright green laser lines offer up to four times better visibility than red lines. Very precise CAL Guard monitoring and remote-control use with Bluetooth?-connected smartphone app. 3 x 360? lines allow simultaneous horizontal and vertical levelling applications for highly efficient work. Additional data: Working range with receiver, value: 120 m, Accuracy: +/- 0.2 mm/m*/** (*for the four horizontal intersection points; **plus use-dependent deviation), Projection: 3 x 360? line, Battery voltage: 12, Laser diode: 500 ? 540 nm, < 10 mW, Operating temperature: -10 ? 40 ?C, Storage temperature: -20 ? 70 ?C, Laser class: 2, Working range: up to 30 m, Working range with receiver: up to 120 m, Self-levelling range: ? 4?, Levelling time: 4 s, Dust and splash protection: IP 54 *** (***except for the lithium-ion battery and AA1 battery adapter), Power supply: 12 V Li-Ion battery, 4 x 1.5 V LR6 (AA), Operating time (max.): 6 h (Li-Ion) and 4 h (4 x AA) in 3-line mode, Tripod thread: 1/4", 5/8", Weight, approx.: 0.9 kg, Colour of laser line: Green, Compatible laser receivers: LR 7, Working range, value: 30 m