Which of the following alarm devices is the best method of protecting a metal container such as a safe or file cabinet?
Which of the following alarm devices is the best method of protecting a metal container such as a safe or file cabinet?
Capacitance detection is the best method for protecting a metal container such as a safe or file cabinet. This is because capacitance sensors can detect changes in the electric field around the metal object, making it highly sensitive to unauthorized access attempts. Vibration detection might be too broad and can trigger false alarms from minor disturbances, while ultrasound and motion detection are not specifically tailored to detecting tampering attempts on a metal container.
B is correct