Siedle Vario audio set in bus technology with the functions of calling, speaking and opening the door. Door station for flush mounting, in anthracite. Number of call buttons: 1. Scope of delivery:. Siedle Vario audio door station (BTLM 750-., TM 700-1-0). Siedle Basic audio indoor station (AIB 150-.). Bus standard power supply unit (BSNG 850-.).
