... : 20%-80%· Access Control: simole access control (with C1 controller)· Electro control: Directness relay output 3A/12VDC· Communication: RS232, ... Keypad Or Display: LCD with 80 character and figure keypad, wireless doorbell· Power: 9-24V DC, stay current: 0.50 ... : RS232: 115200 RS485: 115200 TCP/IP(RJ45 interface)· Standard: wireless doorbell · Authentication: CE,FCC,MA· Optional: short message, work ...