Keyboard designed to receive a VIGIK reader. 2mm stainless steel plate, metal keys, 1 exit push button controlling the opening, key 5 marked. Closing with 4 anti-vandal screws. Coded keyboard 2 relays, adjustable time delay 1 to 99 s, 100 codes of 4 to 6 terms. Power supply 12V to 24V AC or DC.