12V lithium-ion rechargeable power tool battery platform. Laser Accuracy: ±0.125' @ 33'. 3 x 360-degree line laser to aid in full room layout. Laser level tool features green beam laser technology. Overmolded housing and IP65 water/debris resistance. DeWalt® DW089LG Laser Level. Locking pendulum helps prevent damage to internal components. Rating: 12V DeWalt® Batteries. Indoor Visibility Range: 100'. Full-time pulse mode allows use with detector, maintains full brightness for visibility, and extends range.