LiftMaster 891LM Single Button Transmitter

The LiftMaster 891LM is a 1-button Security+ 2.0 remote control. It works with LiftMaster Security+ 2.0 garage door openers (Yellow learn button) and Security+ 2.0 gate operators on 310, 315 and 390 MHz tri-band. It controls one garage door opener, gate operator or myQ light accessory. Each press sends an encrypted rolling code. A 3V lithium battery rated for about 5 years is included. LiftMaster covers it with a 1-year accessory warranty. What's Included 891LM 1-button remote control 3V lithium battery Before You Order Security+ 2.0 only. It will not program to Purple, Red/Orange or Green learn button openers. For those, use the 893MAX or 890MAX. LiftMaster lists it for its 850LM and 860LM Security+ 2.0 receivers. 3-button version: 893LM.