Liftmaster 850LM Gate Receiver

Secure, High-Capacity Receiver for Automatic Gate Openers The LiftMaster 850LM Universal Receiver brings cutting-edge wireless functionality to commercial doors and gate operators. With Security+2.0® technology, this 3-channel receiver operates securely at 315 MHz (default) or 390 MHz, ensuring interference-free communication. Capable of managing up to 3 gates or doors, it is compatible with a broad range of LiftMaster remotes and keypads, delivering unmatched flexibility, performance, and security for access control systems. Whether for commercial facilities, industrial gates, or residential use, the 850LM is your trusted solution for reliable gate and door operation. Key Features Security+2.0® Technology: Advanced encryption eliminates interference and ensures secure, reliable communication. 3 Independent Channels: Control up to 3 doors, gates, or systems independently, ideal for multi-access applications. Broad Compatibility: Works with LiftMaster remotes and keypads. Large Capacity: Channel 1 holds up to 50 remote controls and 2 keypads. Channels 2 and 3 each support 20 remotes and 2 keypads. Flexible Frequency: Operates on both 315 MHz (default) and 390 MHz frequencies for enhanced versatility. Power Flexibility: Accepts 9-42 VDC or 9-30 VAC input, ensuring compatibility with various power systems. Durable and Compact: Built to withstand extreme operating conditions while fitting easily into tight spaces. Easy Installation: Includes a standard Type F antenna with optional antenna extensions for extended range. Technical Specifications Frequency: 315 MHz (default) or 390 MHz. Power Input: 9-42 VDC / 9-30 VAC ~60 Hz. Contact Rating: 5 Amps, 28 VAC/DC max. Capacity: Supports up to 50 remotes and 2 keypads on Channel 1. Supports up to 20 remotes and 2 keypads on Channels 2 and 3. Compatible Remotes: 811LMX, 813LMX, 891LM, 893LM, 890MAX, 893MAX, 892LT, 894LT and more Compatible Keypads: 877LM, 878MAX, KPW5, KPW250 Compatible Antenna Extensions: 86LM (15 ft) and 86LMT (25 ft). Operating Temperature: Reliable performance in extreme conditions. Antenna: Liftmaster K77-36541 Antenna Conclusion The LiftMaster 850LM Universal Receiver is the ultimate solution for secure and flexible wireless control of gates and commercial doors. With Security+2.0® technology, multi-channel operation, and broad accessory compatibility, it offers unmatched reliability and performance. Whether for a single gate or a multi-access facility, the 850LM delivers scalable, dependable access control. Installation / User Manual