2 Selectable Modes: In Auto mode, self-leveling mode is available with a slope range of 4°. The laser will self-level. Otherwise, Beyond 4° of slope, the laser beam will flash to sound an alarm to show that it is no longer level. Lock the pendulum to switch to manual mode, the self-leveling function is disabled and locked so that the device can be used from all angles. New Green Lasers: Equipped with a laser made in Germany, Compared with other red laser levels, the brightness of the laser spirit level tool is increased by three times, which easily projects a clearer and sharper green cross laser line. In addition, it consumes less energy and is very stable indoors. Easy to Use: The laser can be mounted on a 1/4" tripod (not included) or with a magnetic mount (not included). You can rotate the device 360 or adjust the tripod position to the desired height. Rugged Durability: Anti-fall IP54 dust and water protection ensures working in harsh conditions. A 1 meter drop will not affect the function or accuracy of the laser.