The LiftMaster 891LM is a one-button Security+ 2.0 remote control designed to operate a single garage door opener or gate operator that uses LiftMaster’s Security+ 2.0 rolling code technology. It is ideal as a replacement or add-on remote for compatible LiftMaster, Chamberlain, and Craftsman openers equipped with a yellow Learn button and MyQ/Security+ 2.0 radio systems (generally 2011 and newer). The 891LM uses tri-band RF technology that automatically selects among 310, 315, and 390 MHz to help reduce interference and improve reliable performance in residential driveways and light commercial applications. A visor clip and battery are typically included so you can mount it in a vehicle and use it immediately.
Programming is straightforward: press and release the opener’s yellow Learn button (or compatible receiver/control panel), then press the 891LM button to pair within the allotted time window; consult the specific operator manual for exact steps. The remote uses a 3V CR2032 coin-cell battery for power. Compatibility is limited to Security+ 2.0 systems with a yellow Learn button and MyQ-enabled operators; it will not work with older dip-switch remotes or prior-generation Security+ systems that use red, orange, or purple Learn buttons. For safety, only use this remote with operators that have functional photoelectric safety sensors and always test the door or gate’s safety reversal after programming. This compact, single-button transmitter is a dependable choice for everyday use as a replacement part or upgrade for modern LiftMaster/Chamberlain/Craftsman Security+ 2.0 garage door openers and select gate operators.
