LiftMaster 971LM Security+ 390MHz Remote

The LiftMaster 971LM is a single-button Security+ remote control transmitter operating at 390 MHz, designed to open and close one garage door or gate equipped with a compatible LiftMaster, Chamberlain, or Craftsman Security+ receiver. It uses rolling code encryption to change the code with every press, helping prevent code grabbing and unauthorized access. This one-channel transmitter is a dependable replacement remote for residential garage door openers that use the Security+ 390 MHz platform and is commonly used as a spare or replacement part for lost or damaged remotes.

Compatibility is tied to the opener’s learn button color and frequency: the 971LM works with Security+ units that have a red/orange learn button and operate at 390 MHz, typically found on models produced in the late 1990s through the mid-2000s. It is not compatible with purple-learn-button units (315 MHz), yellow-learn-button Security+ 2.0 systems, or older fixed-code/green-learn-button models. Programming is quick: press and release the opener’s learn button, then press the remote button until the opener lights flash or you hear two clicks. The transmitter is powered by a 3V lithium coin cell and features an indicator LED to confirm button presses. For best results, program the remote at the opener head and follow all safety guidance provided by the manufacturer, keeping remotes out of reach of children and testing the door operator’s safety reversal after programming.