At 10.5 in. long, the GradeLight 2700 is suited for fitting tight inverts and small pipe jacking pits. It will self-level over its +40% to -10% grade range. Features include one set of slide legs that cover multiple pipe sizes, and an accessory target with a magnetic base for attaching to trench box side walls. The Grade display is color coded (green for positive grades, red for negative) to reduce setup errors. The unit can be powered by a Li-Ion rechargeable battery pack, alkaline batteries or from a 12V DC source with an optional power cord.