Shenzhen Zhianda Electronics Co., LTD was established in 1996 in Shenzhen China. We are a professional manufacturer specialized in the research, production and marketing of intelligent security systems for more than one decade. Now our main products are digital door phones, video/audio door phones, door bells, alarm host, CCTV cameras, CCTV DVRs, intercom system, home security products. We get many international standards certificates such as CE, Rohs. Its good durability and special design gain high reputation from many strong real estate development companies in China and the users all over the world. We are popular with the timely delivery and superior quality. We practice the newest high technology to produce qualified goods satisfy customers��different changing needs. And we also develop as customers required. At the same time, we keep Three First in mind every time, they are Customers First, Quality First, Price First. We choose the high quality raw material and we have strict check rules before they go out. Superior quality, lowest price and professional service make our products stand out among the similar products.We hope we will cooperate with you and help you develop your market in your area. Just trust us and our products. Welcome to inquiry.sales.zad at zad.com.cn