The Linear Multi-Code MC 3083-01 garage door opener remote from Garage Door Supply Company is a 300MHz mini keychain remote Multi-Code that is compatible with all Linear Multi-Code receivers and remotes. This 10 dipswitch remote can be programmed with any of 1,024 codes.
This Linear mini remote has a built-in LED indicator light and molded-in hole to attach to a keychain. Operate up to two garage door operators. A 12-volt battery is included. The dimensions are: 2.5 in. by 1.5 in. by .625 in., which makes it also easy to fit on a key ring.