Technical data Manufacturer: Bosch Manufacturer's code: 61599403Y Operating range with receiver, value: 300 m Tilt function: no Levelling accuracy: ±3,0 mm at 30 m* (*plus additional deviation depending on the application) Operating range with receiver: up to 300 m (Diameter) Laser diode: 635 nm, Operating temperature: -10 – 50 °C Storage temperature: -20 – 70 °C Laser class: 3R Operating range without receiver, value: up to 60 m (Diameter) Automatic leveling range: ± 5° (8%) Levelling time: 15 s Protection against dust and water: IP 54 Rotational speed: 150, 300, 600 min-1 Power supply: 2 batteries 1,5 V LR20 (D) Tripod thread: 5/8" Weight, approx.: 1.8 kg Laser beam colour: red Rotating laser GRL300HV+BT300HD+GR240 Easy to operate, with automatic horizontal and vertical levelling function Easy to operate with a single button for each function and clear indications Short set-up time for horizontal and vertical operation thanks to automatic levelling up to 8% (± 5°) Separately activated shock warning function prevents levelling errors in the event of vibration and laser movement ** Illustrative images