SR501 HC-SR501 Sensor IR Pyroelectric Infrared PIR module Motion Detector for Arduino

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PIR human body infrared sensing module is based on the technology of infrared automatic control products. High sensitivity, strong reliability, low power consumption, low voltage work patterns. Widely used in all kinds of automatic induction electrical equipment, especially a battery-powered automatic control products

Technical parameters

  • Operating voltage: DC5V to 20V

  • Static power consumption: 65 microamps

  • Level output: 3.3V, low 0V

  • Delay time: adjustable (0.3 seconds to18 seconds)

  • Blockade Time: 0.2 seconds

  • Trigger Mode: L can not be repeated, Hcan be repeated default value H

  • Sensing range: less than 120 degree coneangle of less than 7 meters

  • Operating temperature: -15 to +70degrees

  • PCB Dimensions: 32 * 24mm, screw holedistance 28mm, screw aperture 2mm sensor lens size: (diameter): 23mm (default)


  • Automatic induction: when someone entersits sensing range input high, people leave the sensor range automatic delay offhigh. Output low.

  • Photo sensitive control (optional):module is reserved for the location, you can set the photo sensitive control,daytime or light sensing. The photo sensitive Control optional features notinstalled at the factory photoresistor. If necessary, please purchasese parately photoresistor install it yourself.

  • Two trigger modes: L can not berepeated, H can be repeated.Default is H.

Shipping List

  • PIR Sensor: 1pc


  • Not repeat the trigger mode: the sensor output high, the delay time has elapsed, the output automatically from high to low.

  • Repeatable trigger mode: the sensor output high, the delay period, if human activities within its sensing range,the output will always remain high until people leave only delay the high level goes low (sensor module detected after every activity of the body's automatic post poned a delay period of time, and the last time activities as the starting point of the delay time).




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