The Bosch LR20 Rotary Laser Receiver is designed to increase the GRL2000-40H and GRL2000-40HV rotary laser detection up to 1,000 Ft., with a backlit LCD display for use in darker areas or outdoors. The display illuminated large, easy-to-see indicators, including up/down arrows, center line, accuracy level, battery level and audio signal. It also has dual-sided indicators, to provide easy visual readout on both sides of the receiver. The oversized laser detection area helps find the laser beam faster, making it easier to start setting level. The receiver provides convenience features such as built-in magnets for secure attachment to metal surfaces, an adjustable audio indicator, intuitive four-button keypad, receiver vial and ergonomic soft grip.