Aiphone LEF-10S 10-Call Surface Mt Master W/Sel Door Rel, All Call Btutton product-type_hands-free-hardware Housing: Two-piece housing

Housing:  Two-piece housing

including any combination of master and sub stations

2 3/4"Backset

The C-123L are door answering systems providing audio communication with the door station

Door Thickness – 1-3/8" (34

Aiphone LEF-10S 10-Call Surface Mt Master W/Sel Door Rel, All Call Btutton product-type_hands-free-hardware Housing: Two-piece housingAiphone LEF 10S 10 Call Surface Mt Master W Sel Door Rel, All Call Button Aiphone Intercom LEF 10S 10 Call Surface Mt Master W Sel Door Rel, All Call Button Audio only, selective calling, open voice system. The LEF Series is a selective calling open voice, an audio only system with the capacity of up to 11 total stations. The system can be designed to meet a wide variety of needs, including any combination of master and substations, up to its maximum