The DKS 1838 multi-door access controller is ideal for small businesses, office buildings, factories, industrial sites, apartment complexes, or for any application that requires access control and reporting capabilities. The 1838 is a 2-door controller that easily expands to control up to 16 doors with tracker expansion boards. This flexible system allows access control by means of encoded cards, five digit PINs, wireless RF control, or with almost any 26-bit wiegand device.