Offers fully automatic dial-in slope and centerline modes for consistent leveling to 1,650 feet. Lithium-ion power is behind a system that fast charges laser and receiver at the same time. The remote/receiver is two devices in one, so all information is in hand for easy one-person operation. An industry-first theft deterence alarm offers user peace of mind. A built-in calibration reminder advises user on calibration state and helps avoid expensive mistakes. Full kit of accessories including laser receiver/remote control and bracket, receiver pouch, charger, tripod and grade rod. Fully automatic - dial-in grade with center line mode for automatic searching and positioning of the laser beam on receiver. Li-ion-powered—integrated rechargeable batteries in both unit and receiver for extended operating time. Theft deterrence - tool locks when receiver is undocked from rotary laser; alarm sounds if rotary is moved, unit rendered inoperable without receiver. Remote control and receiver in one - all information about rotary laser status, settings and measurements is easily accessible.