PIR Motion Sensor Detector Module HC-SR501

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SKU: 45900
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Passive InfraRed Motion Sensor Detector Module HC SR 501

  • Wide Working Voltage Range: DC 4.5V- 20V
  • Detection Distance: 3 to 7m (can be adjusted)
  • Blockade time: 2.5s (Default)
  • Work temperature: -20-+80C
  • High digital pulse when it detects Motion of Human Body within the sensor's range.

The PIR Motion Sensor Detector Module HC-SR501 allows you to sense motion. It is mostly used to detect the motion of a human body present within the sensor’s range which can be adjusted between 3 to 7 meters. It is often referred to as “PIR”, “Pyroelectric”, “Passive Infrared”, “IR Motion” sensor or "Pyroelectric Infrared Motion Detection Sensor".

The module has an onboard pyroelectric sensor, conditioning circuitry, and a dome-shaped Fresnel lens. It has a delay time adjustment Potentiometer and sensitivity adjustment Potentiometer. Repeat Trigger Selection Jumper is also available. Compatible with ARDUINO, RASPBERRY PI, etc.

The blocking time potentiometer is also provided on-board to set the blocking time during which the sensor does not respond to any change in motion. The minimum blocking time that can be set is 2.5 seconds and a maximum of 10 seconds.


  • To Increase Sensitivity Rotate the Sensitivity Pot Clockwise.
  • To Decrease Sensitivity Rotate the Sensitivity Anti-Clockwise.
  • To Increase Time Delay Rotate the Time Delay Pot Anti-Clockwise.
  • To Decrease Time Delay Rotate the Time Delay Pot Clockwise.

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