The 635LM receiver uses Security+ technology to upgrade or replacement your receiver. The code between the remote and receiver changes with each use for extra security. It is designed for use with 2 or 3-wire systems using the built-in transformer. It accepts multiple remote controls utilizing up to 8 remotes and one wireless keyless entry. Compatible remotes are 91LM, 973LM and keypad 977AC. Programming Instructions Are Included with Your Order
Usually Ships in One Business Day!