The LiftMaster 850LM Receiver is an add-on, universal radio receiver designed to bring Security+ 2.0 and Encrypted DIP radio control to compatible garage door openers, gate operators, and commercial door operators. Ideal as a replacement receiver or upgrade, it enables operation with modern LiftMaster Security+ 2.0 transmitters (yellow Learn-button family) and LiftMaster Encrypted DIP remotes commonly used in access control. The 850LM listens on LiftMaster’s tri-band Security+ 2.0 frequencies to enhance reception and reliability, and it provides a dry-contact relay output that wires into the operator’s standard push-button/control circuit, making it suitable for residential or commercial applications where you need to standardize remotes or add additional radio control to an existing system.
Programming is straightforward: enroll Security+ 2.0 handheld remotes using the receiver’s Learn function, or use LiftMaster Encrypted DIP-style transmitters by setting their DIP pattern and enrolling them to the receiver. Typical compatible remotes include LiftMaster models in the Security+ 2.0 family (yellow Learn button, such as 891LM/893LM and MAX-series when set to Security+ 2.0 mode) and Encrypted DIP transmitters like 811LM/813LM. The 850LM is intended for indoor or protected locations; for outdoor or exposed environments, a weather-resistant receiver is recommended. Install on low-voltage power, connect the relay output to the operator’s control input, mount away from moving parts and metal obstructions, and verify proper operation with all safety devices per UL 325 guidelines. This universal LiftMaster receiver is a practical way to add Security+ 2.0 compatibility, expand remote capacity, or modernize legacy operators without replacing the entire opener or gate system.