This Liftmaster Door Sensor is just an extra sensor to add on to your Liftmaster MyQ system. This door sensor is also meant to be connected to the universal controller and the internet gateway. This sensor is also a great replacement garage door sensor. Used on the MyQ system that is compatible with up to 16 other garage door sensors. This sensor is compatible with many brands. Such as; Genie, Linear/Moore-o-Matic, Stanley, Overhead Door, Wayne Dalton, Craftsman, Chamberlain, and of course LiftMaster. If you want to check out our other LiftMaster products, click here. Also, if you would like to look at any other garage door products, click here.