The DEWALT DCE079D1G Green Rotary Laser is a fully automatic rotary laser measuring tool, best suited to professional use in work site environments. Green lasers deliver a better working range, in comparison to red lasers, and are easier to see during daytime conditions. Features an automatic horizontal and vertical self-levelling with plumb and a levelling accuracy of & plusmn1.5m@30m. It has a 76m visibility range and a 600m working range, when used with the detector. Includes a manual single slope mode (&plusmn10 ) and a scan mode in X and Y axis. The laser incorporates a heavy-duty rubber housing, that is IP67 rated against dust and waterproof . It has also been drop tested, up to 1 metre. Supplied with the following 1 x Green Laser Detector, 1 x Green Laser Target Card, 1 x Green Laser Glasses, 1 x 18V 2.0Ah Li-ion Battery, 1 x 10.8, 14 & 18V DCB107 XR Li-ion Charger and 1 x DWST1-71195 TSTAK Deep Toolbox. Can be powered by 18V XR or 54V FlexVolt batteries. Specification Accuracy