Smart Wi-Fi Garage Door Opener MSG200 •The external antenna can better receive Wi-Fi signals and can support up to 3 garage doors at the same time. •Compatible with over 200 brands and 1600 different models. Supported by the latest garage opener models as well as the old garage openers produced in the 1990s. •Comes with a high sensitivity sensor that monitors the status of the garage door more accurately. •Installation is much easier than you may think. You can make your garage door smart in just a few simple steps. •Check the compatible list at https://www.meross.com/compatibility.