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Feature
Activates three MegaCode garage door opener receivers.Compatible with all Linear-MegaCode door operator systems, including LDO33, LDO50, LSO50 and LC075 series openers.
Smart Button coding . 318MHz frequency.
Dimensions 2 1/2" x 2 1/2" x 1 1/2".
Battery, visor clip, and instructions are included.