Door contacts for access control are electronic components used to monitor the status of a door. They are often used in conjunction with an access control system to determine when a door is open or closed and to restrict access to certain areas to only authorized individuals. Door contacts are small electronic switches that are installed in the door or door frame. They are connected to the access control system and send a signal to the system when the door is opened or closed. Depending on the settings of the system, this may cause the door to be locked or unlocked, or an alarm to be activated if the door is opened at an unauthorized time. Door contacts for access control can be used to restrict access to buildings, offices, data centers, parking garages, and other secure areas to only authorized individuals. They can also be used to track who has access to certain areas and when, which can help with compliance with laws and regulations, reduce theft, and improve overall security.