HANGZHOU, China, Nov. 30, 2017 /PRNewswire/ -- As a leading solution provider in the global video surveillance industry, Dahua Technology has released a new series of smart locks - The Bluetooth Series and Bluetooth & Wireless 433 series will bring enhanced and convenient protection to people at home. Keys to traditional locks easily get lost and duplicated, and residents cannot remotely open or close doors when necessary. The compact & sleek looking Dahua smart lock HANGZHOU, China, Nov. 30, 2017 /PRNewswire/ -- As a leading solution provider in the global video surveillance industry, Dahua Technology has released a new series of smart locks - The Bluetooth Series and Bluetooth & Wireless 433 series will bring enhanced and convenient protection to people at home. Keys to traditional locks easily get lost and duplicated, and residents cannot remotely open or close doors when necessary. The compact & sleek looking Dahua smart lock