Chamberlain is the most trusted brand of garage door openers, designed with the safety of your home and family in mind. For the 70 percent of homeowners who use their garage door as the main entry, a power outage can become not only an inconvenience but a major safety and security issue. The B2212T meets California SB-969 legislation and comes with integrated battery backup to allow you to safely get in and out of your garage even when the power is out. Additionally, integrated myQ technology lets you control, secure and monitor your garage from the myQ app – anytime, from anywhere.