Aiphone Dual Master Set Kit Includes (2) C-ML/A, LE-D and DAK-2S

C-ML/A Overview & Features: C-ML/A is a Chime Com door answering system. It Communicates with a door and activates door strike. Expands up to 2 Master Stations. Requires DAK-2S Dual Master Adaptor Kit with second Master. Open voice, chime tone door answering system. 15 second timed call in and Communications Communications volume control Door release LE-D Features: Speaker/Mic Call Button Single-ganf guide DAK-2S Features: Allows second master station to be used in C-123L/A, LEM and MP-S Systems Allows RY-AC/A to be used for external signaling in C-123L/A, LEM and MP-S Systems Used for: C-ML/A, LEM-1, LEM-3, LEM-1DL, MP-1S and MP-3S C-123LW Installation Manual