Rotary Laser GRL 400 H, easy to use and always ready - the intuitively operated GRL 400 H rotary laser, controlled with just one button, is prepared at all times for outdoor leveling tasks. Its one-button control panel, electronic self-leveling feature, and convenient battery compartment ensure straightforward operation with easy setup and hassle-free battery changes without needing to move the tool. With a leveling accuracy of 0.08 mm/m and an ADS shock warning function that alerts to any changes in the device's position, the GRL 400 H prevents leveling errors and delivers consistently precise results. From determining cut and fill values for excavation and foundations to leveling concrete formwork and landscaping, this device excels in its performance. Thanks to its IP56 ingress protection against water and dust, this rotary laser withstands harsh conditions when used outdoors. The GRL 400 H can be powered by either rechargeable batteries or alkaline batteries.