Value for money As the last barrier to ensure the safety of residence, the building intercom system is regarded as the "guardian god" of the home living and building intercom system host library (10 photos). The optional building intercom system should be selected for different residential structures, community distribution and functional requirements. Some are suitable for non-enclosed managed homes, which can realize call, intercom and unlock functions, and have the function of luminous indication; Applicable to various residential structures from low to high level; closed managed areas can use indoor units with security alarm function, users can install door magnetic, infrared probe, smoke alarm, gas leakage alarm device, etc. according to their needs. In order to balance the needs and economic conditions of different users, when the unit coding host adopts a color camera, the color in the visual system is compatible with the black and white machine extension, and the user can use a color machine, or a black and white machine, or a visual function. Intercom indoor unit; for convenient engineering wiring, according to different cell distribution, large system bus can adopt star wiring and ring wiring. In order to completely solve the signal attenuation of large systems, an intelligent signal booster can be used for dual-phase transmission of video two-phase transmission on the same cable. A closed cell can also set up a management center. The management center machine can store alarm records, and can check the alarm type, time and alarm building number and room number at any time. The central machine can monitor and call the entire community and the building door. Therefore, the choice of building intercom system must be selected according to the characteristics of the residential community, and must not be blind. In order to achieve the highest performance price ratio, the maximum function of this system is exerted. We are based in China a manufacturer of different type of flooring,both wood flooring like Laminate Flooring,engineered flooring and Vinyl flooring such as LVT,SPC Flooring and MGO flooring for more than 15 years experience,we are serving more than 300 customers from 30 different countries. Vinyl Flooring,Wpc Flooring,Wood Flooring,Engineered Flooring CHANGZHOU ART DECORATION MATERIALS CO.,LTD , https://www.cnartdecor.com