PIR Sensor (Rev B)
PIR Sensor (Rev B)PIR Sensor (Rev B)
PIR Sensor (Rev B)

PIR Sensor (Rev B)

Manufacturer: Parallax
Product Code: Sensors-PIR-B_555-28027
Weight:0.25 lb
Reward Points:0
In Stock
Price: $10.99

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The PIR Sensor detects motion by measuring changes in the infrared (heat) levels emitted by surrounding objects. When motion is detected the PIR sensor outputs a high signal on its output pin.

The product information found on this page currently pertains to Revision B of this product, which provides many updates and features from Revision A. Some of these include:

  • Longer detection range, selectable by onboard jumper.
  • Wider supply voltage, from 3 to 6 VDC.
  • Higher output current provides for direct control of an external load.
  • Mounting holes included for permanent projects.
  • All parts SMT.

Key Features:

  • Detection range up to 15 ft. away on short setting, up to 30 ft. away on long setting.
  • Onboard LEDs light up the lens for fast visual feedback when movement is detected.  
  • Mounting holes for 2-56 sized screws provide easy integration in permanent applications.  
  • 3-pin SIP package perfect for breadboard-friendly projects.  
  • Easy communication with any microcontroller.  
  • Small size makes it easy to conceal.

Application Ideas:

  • Motion-activted nightlight.
  • Alarm system.
  • Animated holiday props.


  • Source current up to 12 mA @ 3V, 23 mA @ 5V.
  • Voltage requirements: 3 to 6 VDC.
  • Current requirements: 130 uA idle, 3 mA active (no load).
  • Communication: Single bit high/low output.
  • Dimensions: 1.41 x 1.0 x 0.8 in (35.8 x 25.4 x 20.3 cm).
  • Operating temp range:  32 to 122 °F (0 to 50 °C).

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