The GRL300HV professional rotation laser is the self-levelling, easy handling rotation laser from Bosch. It is incredibly easy to operate thanks to the one button per function feature & its self-explanatory display. Even shocks & vibrations won’t affect your work because of Bosch’s shock warning function that prevents levelling errors; this function can also be switched off easily. There is a rotation mode as well as point & line functions for maximum visibility in the workspace. The accuracy rate is unrivalled at 0.1mm/m ensuring quality you can rely on. The unit can even withstand drops from a height of up to 1m, as well as IP54 dust & splash protection, meaning you know the Bosch unit is just as tough on site as you are. There is even a plumb & reference beam for quick alignment. The laser diode is 635 nm, < 1 m W (class 3R); the system can operate in temperatures between -10 – 50 °C & can be stored at temperatures between -20 – 70 °C. It has a 300m diameter working range when coupled with a receiver & a 60m diameter working range when used without. Its self levelling range is 8% & its levelling time a mere 15 seconds. This product comes complete with 1 x Ni MH battery, 2 x 1.2V HR20 (D), 2 x 1.5V LR20 (D), battery compartment, carrying case, charger set with adapter, holder, LR 1 professional laser receiver, laser target (red), laser viewing glasses (red), RC1 professional remote control, WM 4 professional universal mount, GR 240 Professional measuring rod & BT 300 HD Professional building tripod.