The Dewalt DW088CG Green Beam Line laser is self-levelling up to a 4 degrees surface angle. With automatic out of level indication, marks a levelled line in seconds and maintains full brightness for visibility. Features: Accuracy: +/- 3mm@10m. Self-levelling cross line laser is accurate to 0.3 mm/m in levelling applications Full-time pulse mode allows use with detector. Works with DE0892G detector up to the distance of 50 metres IP54 - Debris/water resistant with overmolded housing and thick glass that protects the tool and helps maintain calibration under jobsite conditions Integrated magnetic pivoting base with 1/4" thread for use with tripod the built in magnetic pivot bracket mounts easily on metal surfaces Battery Life indicator and includes 3 x AA batteries for .