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    5. What is the detection range of PIR sensor?

    Infrared Sensors FAQ QWhat is the detection range of PIR sensor?

    A

    Since the detection distance changes by various conditions, it cannot be specified.
    The detection distance changes by the following conditions.

    1. Sensitivity of the sensor itself
    2. Optical system design
    3. Circuit condition
      (Amplification factor, frequency characteristic of the amplifier circuit, threshold of the comparator, etc.)
    4. Ambient temperature
    5. Movement of the object (person)
      (Moving speed, height of people, clothing, moving direction, etc.)

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    5. What is the detection range of PIR sensor?
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