LiftMaster 811LM 1-Button 12 Code Switch Commercial Gate Opener Transmitter Remote Controller

Not compatible with garage door openers or gate openers that do not currently use model 811LM or 813LM liftmaster 811LM 12 code switch digital encrypted remote viewer for commercial doors and radio receivers that are security + 2.0. Works with liftmaster 850LM and 860LM radio receivers and commercial gate openers that are Security+ 2.0 compatible using the 811LM or 813LM remote controls. The liftmaster 811LM remote control is directly compatible with 850LM and 860LM radio receivers and commercial openers using the Security+ 2.0 system. The liftmaster model 811LM is a 12 button encrypted digital code switch remote control that uses all three narrowband frequencies (310, 315 and 390 MHz) for better range and is compatible with liftmaster 850LM and 860LM radio receivers and commercial openers. with Security+ 2.0 technology. This remote control has 12 on/off and transmission code switches. It is a digital encrypted signal instead of a standard digital signal to provide additional security.