LiftMaster 850LM Universal Gate & Garage Door Receiver — Compatible with 811LM, 813LM and MAX Remotes

The LiftMaster 850LM universal receiver works with 811LM, 813LM, and all MAX remote controls to provide flexible access control. It supports three expandable channels: Channel 1 - 50 remotes, Channel 2 - 20 remotes, Channel 3 - 20 remotes, allowing large-scale remote enrollment. Its compact form factor installs on most gate and commercial door operators. Ideal for gated communities, industrial facilities, and commercial sites, the 850LM enables single-transmitter operation across multiple entry points. Multiple remote control options are supported so users can securely open gates and doors from the safety and convenience of their vehicle.