Connected doorbell and video door phone -access control system Highlights generic brand access control system Description: Built-in card reader, also can have an external card reader attached to it. Support card, password and card+password to unlock the door. Fully compatible with 5-digital, 8-digital and 10-digital password. The system triggers an alarm when the door is not closed timely or someone opens the door by force. Built-in anti-system circuit and voltage detection system, ensure the system can work stably for a long time. Apply to electric equipment such as automatic door, brake machine, etc. Professional design for home and office. Support 1,000 standard users. Specification: Material: Plastic Size: Approx. 75x100x21mm / 2.95x3.94x0.83inch Working voltage: DC 8-15V Power: 3W Working frequency: 125Khz Capacity: Support 1,000 pieces ID card storage Package includes: 1 piece access control body Cables 3pcs Screws 3pcs 2pcs User Manual Note: Please disconnect the power supply when wiring. Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.