The Genie Intellicode GIT390-4 Mini keychain remote is not compatible with older transmitters and receivers(prior to 1997). There are no Security Code Switches inside the Door Operators, Transmitters, and Receivers.
Genie Intellicode GIT390-4 Mini Keychain Remote features:
Operates up to FOUR garage doors
Compatible with Genie Intellicode SERIES II ELECTRONICS garage door openers manufactured 1997-current
Mini keychain remote-approx. 2.5" x 1 1/4"
The Genie Intellicode GIT390-4 Mini Keychain Remote includes: Mini remote, Instructions, keychain, battery,and directions.
