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    PIR sensors are used to detect motion from pets/humanoids from about 20 feet away (possibly works on zombies, not guaranteed). This one has an adjustable delay before firing (approx 2-4 seconds), adjustable sensitivity .

    Dimension: 3.2cm x 2.4cm x 1.8cm (approx)
    Infrared sensor with control circuit board
    The sensitivity and holding time can be adjusted
    • Working Voltage Range: DC 4.5V- 20V
    • Current drain:<60uA
    • Voltage Output: High/Low level signal:3.3V TTL output
    • Detection distance: 3--7M(can be adjusted)
    • Detection range: <140°
    • Delay time: 5-200S(can be adjusted, default 5s +-3%)
    • Blockade time: 2.5 S (default)
    • Trigger: L: Non-repeatable trigger H: Repeat Trigger (default)
    • Work temperature:-20-+80°C
    • Trigger Method: L unrepeatable trigger / H repeatable trigger
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  • HC-SR505 Mini PIR motion sensing module for arduino body sensing mode mini-body sensor switch NEW ()

    HC-SR505 Mini PIR Motion Sensor is based on infrared technology and it can automatic control by itself with high sensitivity and high reliability. Because of the minimum size and low-power operation mode, it widely used in various of automatic electronic equipment, especially battery-powered automatic products.


    • Automatic Control
    • Minimum size
    • Repeatable Trigger
    • Wide range of operating voltage
    • Low-power
    • Output high signal


    • Operating voltage range: DC4.5-20V
    • Quiescent Current: <60uA
    • Trigger: reusable trigger (default)
    • Delay Time: The default 8S + -30%
    • Board Dimensions: 10 * 23mm
    • Induction angle: <100 degrees cone angle
    • Sensing distance: 3 meters
    • Working temperature: -20 to +80 degrees
    • Sensor Lens Dimensions: Diameter: 10mm
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