LiftMaster 821LMC-S Smart Garage Control, Universal
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Condition: New
Description
LiftMaster 821LMC-S Smart Garage Control Hub
LiftMaster 821LMC-S is a smart garage control hub designed for residential garage door applications. It enables remote monitoring and control of garage doors for homeowners, supporting smartphone based access and notification workflows. This makes it ideal for homes where remote visibility and secure access awareness are critical.
The system links an existing garage door opener to the MyQ platform using a hub and door sensor configuration. It communicates wirelessly with compatible devices and integrates with a home network to provide real time status updates and control.
Designed for simple upgrades, the device supports expandability to additional MyQ accessories and integrates into daily routines through scheduling and alerts. It is suited for users who want consistent remote access without replacing their existing garage door opener.
Key Features
- Smartphone Control: Allows garage door monitoring and operation from mobile devices
- Universal Compatibility: Works with most major garage door opener brands with standard safety sensors
- Expandable Platform: Supports additional MyQ accessories including lights and light controls
- Real Time Notifications: Sends alerts when the garage door opens or closes
- Wireless Setup: Uses Bluetooth for initial pairing and network connection
Technical Specifications
Control
Control up to two garage door openers at once with an additional garage door sensor (SKU: 821LMC-SENSOR), enables up to 16 MyQ accessories including LED lights and light controls, acts as a Wi-Fi bridge for Yale LiftMaster Locks
Components
Hub communicates with the garage door opener via radio control, plugs into an outlet and mounts on ceiling or wall in the garage, door sensor mounts on the top panel of the inside of a sectional garage door
Dimensions
Hub: 3.875" W x 3.875" H x 1.25" D
Door Sensor: 2.625" W x 2.625" H x 0.875" D
Wi-Fi Network
2.4 GHz
IEEE 802.11 b/g/n
Security: WPA2, WPA and WEP
myQ Radio
902-928 MHz 50-Channel FHSS (frequency hopping spread spectrum), provides 2-way communication from garage door opener and myQ accessories, enables monitoring and control of garage door openers and lighting controls via smartphone or tablet
Bluetooth
Enhanced setup experience to home network, communicates with Yale LiftMaster Locks
Compatibility
Works with all major brands of garage door openers made after 1993 with safety sensors
LiftMaster, Chamberlain, Craftsman and Raynor: 310, 315, 390, 433.92, 434.5 MHz
Linear: MegaCode 318 MHz
Genie: Intellicode 315, 390 MHz
Overhead Door: CodeDodger 315, 390 MHz
Wayne Dalton: KeeLoq 372.5 MHz
Stanley: SecureCode 310 MHz
Xtreme Garage: 390 MHz
Sommer: KeeLoq 310 MHz
Warranty
1 Year Warranty
What’s in the Box
(1) Smart Garage Control Hub(1) Door Sensor
(1) Power Adapter
(1) Mounting Plate and Hardware
(1) Quick Start Guide
