Rolling code remote transmitter for gate openers. Model Number:                       RC-12G Encoding type:                         Rolling Code Frequency:                               433,92MHZ Battery size:                             23A 12 Volts Material:                                 Plastic Type:                                       Button Key Dimensions(L x W x T):             63*38*12mm Compatibility: Swing gate openers:               SW-01A, SW-01, SW-02, SW-02L, SW-05 Sliding gate openers:             SL-2405, SLC-2405