Velleman HAA2890 Dual Relay Digital Access Control Reader Keypad, 1 Grade to 12 Grade, 6.63″ Height, 1.83″ Wide, 0.94″ Length, ABS, Weatherproof Review Gobling April 16, 2018 August 29, 2018 No Comments on Velleman HAA2890 Dual Relay Digital Access Control Reader Keypad, 1 Grade to 12 Grade, 6.63″ Height, 1.83″ Wide, 0.94″ Length, ABS, Weatherproof Review The HAA2890 is a weatherproof, self-contained, mullion mount compact keypad, combining the functions of Digital keypad and proximity EM Card Reader in one unit.