DoorKing Introduces Wireless Expansion

DoorKing Introduces Wireless Expansion Press Release - Feb 8, 2013 Inglewood, CA – DoorKing is introducing wireless expansion boards for its 1830 series of telephone entry and access control products. The new wireless expansion boards make it possible to add up to 16 card readers (or other access devices) to an access control system without the need for additional wire runs.....