Liftmaster Chamberlain 361LM Remote Control Transmitter, works with 312HM Receiver for Gate Openers or Commercial Doors Compatible with 315 MHz dip switch setting, and also learns into the 312HM Receiver Does not work with Purple Button Garage Openers Does not work with Green, Red, Orange, Purple, or Yellow Button Garage Openers Does not any Sears, Chamberlain, or Liftmaster Garage Openers This is not compatible with the 61LM