Since its establishment in 1994, Guangzhou Lansidun Electronics Co., Ltd., a new high-tech enterprise, has been specializing in research, development and production of intelligent and surveillance products. Company includess R&D, production and sale of products of building intercom system, audio door phone,video door phone closed-circuit monitor apparatus and warning apparatus. Company includes R&D Center, Marketing Center, Service Center and Production Center etc. Marketing service networks spread all over the country and products find a good market in dozens of countries and regions in the world such as The USA, Bratain, France, Belgium, Saudi Arabia, Russia,etc. Lansidun products have passed ISO9001, 2000 version international quality system authentification.Products have passed ISO9001 certification of TUV, European Union CE Authentification, American FCC/FDA Inspection.