Operates the garage door opener and lights from inside the garage. Offers an adjustable light timer with timer to close feature, and can be used to receive activity alerts and open/close your door via your smartphone when paired with the 828LM gateway. Compatible with Liftmaster Security+ Operators (315 & 390MHZ) manufactured from 1998 to 2011, and with the Liftmaster 8500 manufactured from 2011 onwards.