Bosch GRL 500 H + BT170HD + GR240 Professional Horizontal Rotary Laser Level with Tripod and Cut and Fill Rod Kit 06159940EE The first rotation laser with theft protection for all levelling work. GRL 500 H + LR50 FEATURES Theft protection: an alarm is triggered if the GRL 500 H is moved without the LR 50 Professional during operation Simultaneous charging: the Li-Ion batteries in both components are charged together in very little time Calibration reminder: automatically indicates calibration requirement Relative height display: distance between where the laser beam hits the reception area and the centre of the receiver Slope function: enter slope values directly and precisely using the LR 50 Professional keypad Anti-Drift System: prevents levelling errors in the event of shocks or vibrations Sleep mode: longer operating time while retaining the settings Centre Line button: automatically aligns the laser beam with the centre of the receiver and measures the slope value SPECIFICATION Laser Diode: 635 nm < 1 mW Operating Temperature: -10 – 50 °C Storage Temperature: -20 – 70 °C Laser Class: 2 Working Range with Receiver: 500 m (Diameter) Working Range without Receiver: 20 m (Diameter) Levelling Accuracy: ± 0.05 mm/m Horizontal Self-Levelling Range: ± 5.7° (10%) Levelling Time: 15 s Dust and Splash Protection: IP 56 Rotation Speed: 600 rpm Beam Diameter: 5 mm Power Supply: 4 x 7.4-V-Li-Ion Operating Time Max: 25 h Tripod Thread: 2 x 5/8\" Weight Approx: 2.3 kg Length: 234 mm Width: 217 mm Height: 194 mm Colour of Laser Line: Red Projection: 1 x 360° Line BT 170 HD Building Tripod FEATURES Quick locking due to Quick-Clamp-System High resistance to environmental influences 5/8\" thread adaptor SPECIFICATION Work Height: 107 – 165 cm Weight Approx: 5.5 kg Tripod Thread: 5/8\" x 11 GR 240 Cut & Fill Rod FEATURES Robust, high-quality aluminium profile Extendible up to 2.4 m For use even under extreme conditions SPECIFICATION Length: 2.4 m Sections: 2 Units of Measure: m / cm Material: Aluminium