Liftmaster/Chamberlain/Sentex Chamberlain Multi-Code Compatible 300MHz Remote Chamberlains replacement model for the Multi-Code 3089 Original Remote. Single Button - Multi-Code Compatible- 300MHZ. Finally- replacement for MC3089/1089/3083/4120/3070 Compatible with Linear 308911- discontinued remote. - Also used with Tri-Code Discontinued Receivers Red LED indicates battery strength and signals sent transmission- 10 dip switch setting. 12V battery, directional visor clip included