13.56MHz powerful access controller with time attendance, card + keypad, read only, 512 cardholder, ISO 14443A, RS485. CV9601T ... period of time and closed by presenting card, it’s suitable for frequent access place such as hotel, classroom, hospital, ... available to meet complete solution 13.56MHz powerful access controller with time attendance,card+keypad,read only,512 cardholder,ISO 14443A,RS485