Liftmaster 877LM Keyless Entry System

Help, Troubleshooting, and Instructions

Liftmaster Help, Troubleshooting, and Instructions

liftmaster 877LM Keyless Entry System

• Security+2.0 rolling code anti-theft technology.
• One button to close feature.
• Temporary password option enables visitors or delivery and service personnel to enter the garage. The temporarily PIN can be set for a number of hours or a number of garage door openings.
• Backlit keypad makes numbers easy to use in the dark.
• Compatible ONLY with Security+ 2.0 LiftMaster garage door openers or gate operators.
• All Security+ 2.0 garage door openers have a round yellow Learn button and two yellow antennas.
• Includes battery (9VOLT), mounting screws and instructions.
• Replacement garage door keypad cover (41D621) and battery cover (41D541).
• Size 6 1/4" long, 2 1/2" wide.