Which of the following protection devices is used for spot protection within a few inches of the object, rather than for overall room security monitoring?
A. Wave pattern motion detectors
B. Capacitance detectors
C. Field-powered devices
D. Audio detectors
Which of the following protection devices is used for spot protection within a few inches of the object, rather than for
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answerhappygod
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Which of the following protection devices is used for spot protection within a few inches of the object, rather than for
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