Now compatible with laser detector DE0892 for outdoor usage Self-leveling cross line laser with an accuracy of ± 0.3 mm / m Self-Levelling up to 4° surface angle with automatic level indication, marks a leveled line in seconds 2 button operation and low battery indication for ease of use Built in magnetic pivot bracket mounts easily on metal surfaces Plated housing and thick glass protect the tool and maintain calibration 3 x (AA) batteries can deliver over 40 hours of runtime Carry case protects unit and helps maintain calibration when stored Overmolded housing and thick glass protects the tool and helps maintain calibration under jobsite conditions Can be used in conjunction with the DE0892 detector up to a distance of 50 metres