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821lmcs

821lmcs

Smart Garage® Control

  • Smartphone control: Control, secure and monitor your garage door from anywhere.
  • Works with most brands of garage door openers manufactured after 1993 that use photoelectric sensors that do not shut off. It is not intended for use with openers in which the photoelectric sensors located near the bottom of the garage door change power mode (e.g., lights on the sensors turn off after the door is closed), or any Chamberlain Group opener with a yellow learn button manufactured between 2010 and 2021, or any Linear opener.
  • New design: Compact modern design with a white finish that blends in with ceilings, walls and garage doors. New mounting plate simplifies install.
  • Improved setup: Bluetooth Low Energy (BLE) integration makes setup easier than ever. Download the myQ® App and follow the in-app instructions to get set up in minutes.
Full Product Page
Two white electronic devices labeled "LiftMaster" and "myQ connected" shown side by side on a plain background, with indicator lights and buttons on their front panels.
AccessoryType
Genuine LiftMasterOEM Part
myQ® ReadyWhere Equipped
Pro InstallSetup Included
Same-DayService
Miami & BrowardCoverage
About This Operator

About the 821LMC-S

The 821LMC-S (Smart Garage® Control) is part of LiftMaster’s smart garage ecosystem. We make sure it’s the right match for your opener and your goals — whether that’s app control with myQ®, better visibility, or restoring a system to factory-fresh function.

As an authorized LiftMaster dealer we install genuine parts only, configure everything before we leave, and stand behind the work.

View full specs on LiftMaster.com ↗

LiftMaster MYQ-SGC1WLM LiftMaster Smart Garage Camera™
LiftMaster 821LMC-S from Joes Doors South Florida
Setup & Programming

821LMC-S Programming Done For You

We install the 821LMC-S, connect it to your opener and your home network where applicable, verify operation end to end, and show you exactly how to use it.

  • Compatibility confirmed before you buy
  • Genuine LiftMaster part, professionally installed
  • Configured & tested before we leave
  • Walkthrough so you’re comfortable using it

Get It Installed

Troubleshooting & Support

821LMC-S Not Working? We Can Help

Already have a 821LMC-S that’s offline, unresponsive, or acting up? We troubleshoot wiring, Wi-Fi, and opener-side issues — and replace the unit if it’s beyond saving.

  • Connection & wiring diagnosis
  • Wi-Fi / myQ® reconnection
  • Opener-side troubleshooting
  • Genuine replacement if needed

Call for Same-Day Repair

LiftMaster 888LM myQ® Control Panel
Request an Estimate

Tell Us About Your Project

  • 1Share project details. Send the form or call us — either way we identify your needs fast.
  • 2Same-day callback. Online requests get a callback the same business day.
  • 3On-site estimate. We measure, inspect, and quote at your facility — free.

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Good to Know

821LMC-S — Common Questions

Is the 821LMC-S compatible with my setup?

Compatibility depends on your opener’s model and generation — call us with the model number and we’ll confirm before you buy.

Do you install what you sell?

Yes — every accessory we supply can be installed and configured by our technicians, usually in the same visit.

Can it be added to an older opener?

Often yes — several LiftMaster accessories are designed to add smart features to older openers. We’ll tell you honestly if an upgrade makes more sense.

Can you program it for me?

Yes — we supply genuine LiftMaster accessories and program them to your opener, either in one of our service visits or bundled with any repair or installation. Call 954-799-9787.