Description:

The PIR (Passive Infra-Red) Sensor is a pyroelectric device that 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. This logic signal can be read by a microcontroller or used to drive an external load. Dual output modes and a sensible design that performs within stated datasheet specifications are a few reasons over 100,000 units are in use around the world.

Specifications:

  • Power requirements: 3 to 6 VDC; 130 μA idle, 23 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)
  • Weight: 8g

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