According to Matrix Style door station series, vandal proof flush mounted keypad for access control with buttons and front plate in stainless steel (IP45). Two relays for lock opening, access control or other functions. Programming and code composition is made through the front plate. Keypad deactivation with increasing time intervals (max 25 secs) in case of wrong combination. The 12 programmable codes are composed from 1 to 8 digits for each relay. Programmable timer from 1 to 99 secs. in monostable working or bistable operation. Relays can be activated by pressing an additional Exit button. For outdoor use.