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LiftMaster 821LMC-SENSOR Smart Garage Control Door Sensor

SKU: 821LMC-SENSOR LiftMaster
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Product images for LiftMaster 821LMC-SENSOR Smart Garage Control Door Sensor. 2 image(s) available. Click on image to view full size.

Key Features

  • Add remote monitoring and control of a second garage door through the myQ app for improved security and convenience
  • Compact, low-profile design (2.65" H x 2.62" W x 0.87" D) fits discreetly on most garage doors and sensors
  • Simple installation and programming saves technician time and reduces downtime for fleets and facilities
  • Integrates with LiftMaster Smart Garage Control, myQ Smart Garage Hub and myQ Garage for centralized access and alerts
  • 1-year limited warranty provides reliable protection and support for commercial and residential deployments

Quick Specifications

Brand Name
Liftmaster
Manufacturer
LiftMaster
Product Name
Door Sensor
Product Type
Sensor
View Full Technical Specifications

Product Information Tabs

Overview

Keep your facility or home garage secure and connected with the LiftMaster 821LMC-SENSOR Smart Garage Control Door Sensor. Designed to add monitoring and control of a second garage door, this LiftMaster sensor gives you real-time status and remote operation through the myQ app—so you can verify door position, receive alerts and manage access from anywhere. Its compact footprint (2.65" H x 2.62" W x 0.87" D) installs easily on most doors and integrates seamlessly with Smart Garage Control, myQ Smart Garage Hub and myQ Garage systems. The sensor provides a straightforward solution for security-conscious property managers, fleet operators and installers who need reliable surveillance and monitoring without complex wiring. Backed by a 1-year limited warranty, the 821LMC-SENSOR offers dependable performance and rapid setup so you can scale garage monitoring across multiple sites. Ideal for enhancing security, access control and operational oversight—add the LiftMaster 821LMC-SENSOR to your myQ ecosystem today to expand garage monitoring and protection.

Features

  • Add remote monitoring and control of a second garage door through the myQ app for improved security and convenience
  • Compact, low-profile design (2.65" H x 2.62" W x 0.87" D) fits discreetly on most garage doors and sensors
  • Simple installation and programming saves technician time and reduces downtime for fleets and facilities
  • Integrates with LiftMaster Smart Garage Control, myQ Smart Garage Hub and myQ Garage for centralized access and alerts
  • 1-year limited warranty provides reliable protection and support for commercial and residential deployments
General Information
Brand Name Liftmaster
Manufacturer LiftMaster
Product Name Door Sensor
Product Type Sensor
Product Model 821LMC-SENSOR
Manufacturer Part Number 821LMC-SENSOR
Others
Model Number Replaces 821LMB-2SENSOR
Physical Characteristics
Depth 0.87"
Width 2.62"
Height 2.65"
Weight 775.12lb
Warranty
Limited Warranty 1-Year