What electromechanical device is typically installed in a doorframe?

The device that is typically installed in a doorframe is the door strike. A door strike is a critical component of an electronic access control system, as it serves to secure the door when closed by engaging with the latch of the door. It ensures that the door remains locked until the access control system (often an electronic keypad or card reader) authorizes entry.

When the system grants access, it sends a signal to the strike, allowing the latch to disengage and enabling the door to be opened. This electronic interface reinforces security by ensuring that unauthorized access is prevented effectively.

While other components like a door latch are essential for the normal operation of the door, they are not specifically installed within the doorframe itself. A door sensor, on the other hand, is used to detect movements or the status of the door but does not lock or hold the door in place. As for door hinges, they are mechanical components that allow the door to pivot and swing open or shut but are not responsible for securing it. Therefore, the door strike is the correct choice as it integrates with the electronic access system and is strategically placed in the doorframe to perform its function.