The back of your garage door opener motor should have a redish orange SMART learn button on motor head under light cover. This Security Plus remote is a 3 channel/button transmitter, compatible with models operating on a 390 MHz Frequency, and has over 100 billion codes with code rotating technology (Security+). Compatible with ALL 390 MHz Security+ systems, including Chamberlain, Sears, Craftsman and Raynor code rolling residential openers. The corresponding wireless keypad is the 976LM wireless keypad for Security Plus 390MHz garage door openers.