Commercial Overhead Door Remote Control System The PB3-DRC is an innovative product that replaces the standard commercial door three button operator switch and provides remote control operation with no additional wiring or hardware. The PB3-DRC is a universal system that has been tested with most major brands including Liftmaster, Lynx, MMTC and Allstar. The control operates using an external power supply that connects to any standard 120V wall outlet. The system allows you to remotely control the “OPEN”, “CLOSE” and “STOP” functions while still allowing manual push-button operation. The control is supplied with a single waterproof 3-button keyfob transmitter. We offer several accessories that work with the system including an outdoor keypad (KP340-DRC) that will operate the system using a custom 4-digit code, a multi-door transmitter (KF340-DRC-99) that can control up to 99 doors on a single transmitter, and our rechargeable transmitter (GKF-WPTX-DRC).