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12040 video intercom doorbell products are offered for sale by suppliers on Alibaba.com, of which door phones accounts for 82%, biometric access control products accounts for 3%, and other access control products accounts for 1%. A wide variety of video intercom doorbell options are available to you, such as waterproof, thermal image and night vision.You can also choose from oem, customized logo and odm video intercom doorbell,as well as from tcp, ip, and wifi video intercom doorbell,