{"product_id":"liftmaster-821lmc-smc-myq-smart-garage-control-gen3","title":"Liftmaster 821LMC-SMC Myq Smart Garage Control Gen3","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe LIFTMASTER 821LMC-SMC is a third-generation myQ Smart Garage Control designed to add smartphone-based monitoring and control to compatible garage door openers. The device connects the opener to a home Wi-Fi network, allowing the door status to be checked and the door to be opened or closed remotely through the myQ app. It is sold as a single unit and is intended for installation by a qualified technician or knowledgeable DIYer comfortable with low-voltage wiring. The Gen3 platform represents the current production revision of the myQ controller lineup.\u003c\/p\u003e\u003cp\u003eThis controller is suited for residential garage door opener systems where remote connectivity is not built in from the factory. Typical installations involve a wall-mounted unit wired to the opener's terminals, enabling smart-home integration. It falls within the Garage Door Controls category and ships as a single device.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eThird-generation myQ Smart Garage platform with Wi-Fi connectivity\u003c\/li\u003e\n\u003cli\u003eEnables remote open, close, and status monitoring via the myQ smartphone app\u003c\/li\u003e\n\u003cli\u003eSingle-unit package for straightforward add-on installation\u003c\/li\u003e\n\u003cli\u003eDesigned to add smart control capability to existing compatible openers\u003c\/li\u003e\n\u003cli\u003eCompact controller form factor for wall-mount installation near the opener\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style add-on smart control for compatible residential garage door opener systems. Consult the myQ compatibility tool or the opener manufacturer documentation to confirm fitment before installation.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is typically performed by a qualified technician familiar with low-voltage wiring and garage door opener systems. Disconnect power to the opener before wiring the control terminals. Follow all applicable manufacturer wiring diagrams and local building codes. Do not install near sources of interference that could affect Wi-Fi signal reliability.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit of Measure\u003c\/strong\u003e: Each\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity Per Package\u003c\/strong\u003e: 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGeneration\u003c\/strong\u003e: Gen3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory\u003c\/strong\u003e: Garage Door Controls\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: LIFTMASTER\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 821LMC-SMC\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"LIFTMASTER","offers":[{"title":"Default Title","offer_id":51685831835954,"sku":"821LMC-SMC","price":203.71,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/1b4e5605bb1c7017fd9b2e4573977b69.jpg?v=1788219524","url":"https:\/\/voomisupply.com\/products\/liftmaster-821lmc-smc-myq-smart-garage-control-gen3","provider":"Voomi Supply","version":"1.0","type":"link"}