Single-family house kit Quadra with mini (HF) handsfree, SB2 video kit. This kit is completely pre-addressed to address 1 when delivered and only needs to be installed and connected electrically. It is also possible to split or quarter the bell button using a DIP switch code and convert this kit into a two-family house or four-family house kit by adding additional audio or video indoor stations. A maximum of 4 audio or video indoor stations can be installed per participant. This kit consists of: 1x Quadra door station Art. 4893M, 1x power supply Art. 1209, 1x mini handsfree indoor station Art. 6721W, branch terminal Art. 1214/2C and terminating resistor Art. 1216. With the optional accessory 4792E, the horizontal inclination of the Quadra door station can be changed by 25°.