Green Beam Laser Technology – Four times brighter green laser technology for visibility in long range interior applications and exterior visibility 10 8v Lithium-ion Rechargeable Power Tool Battery Platform For extra long run time and the convenience of rechargeable power tool batteries Self-levelling cross line laser is accurate to ñ0 3 mm/m in levelling applications Self-Levelling up to 4 degrees surface angle with automatic out of level indication marks a levelled line in seconds 2 button operation and low battery indication for ease of use Built in magnetic pivot bracket mounts easily on metal surfaces Overmolded housing and thick glass protects the tool and helps maintain calibration under jobsite conditions Full-Time Pulse Mode Allows Use with Detector – Maintains full brightness for visibility and extends range