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You are here: Home > CompTIA Exam Questions > HT0-101 > Which of the following use high-frequency sound?

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Which of the following use high-frequency sound?

seenagapeMarch 31, 2014

Which of the following use high-frequency sound?

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A.
Occupancy sensors

B.
Ultrasonic sensors

C.
Photosensors

D.
Passive Infrared (PIR) sensors

In HT0-101Exam HT0-101

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