Date: 2015/03/06
With the popularity of intelligent building intercom ushered in a new development opportunities, and has become the standard equipment of a modern residential community, it can not only provide feed for the user, the management and visiting guests, but also on the formation of building security effective security management.
But the vast majority of the building intercom system uses the ID card the way out of the cell or the building when that ID card through the brush to open the door. A see...
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