Sears Craftsman 139.53225srt Remote Aftermarket Replacement: Stinger 81lm Equivalent to the Sears Craftsman 139 model number listed above Compatible with operators manufactured between 1993-1997 Uses a "Smart" coding button to program the remote 1 channel transmitter, compatible with the "Billion Code" series Includes a visor clip and Lithium battery, also instructions come with the remote