Which of these following sensor is a useful as part of a burglar alarm system for commercial buildings ?

Architectural Design 28/01/2021

A. Movement detector
B. Door sensor
C. Window sensor
D. All of the mentioned

Explanation: A burglar alarm system for commercial buildings include movement detectors in individual rooms, door sensors that detect corridor doors opening, and window sensors on ground-floor windows that can detect when a window has been opened

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