PIR Motion Sensor (HC-SR501)

About this product

HC-SR501 passive infrared (PIR) motion sensor module detecting human movement via changes in infrared radiation. Adjustable sensitivity (detection range) and delay time via onboard potentiometers. Suited for security systems, automatic lighting, and occupancy-based automation projects.

Ultrasonic, IR, temperature, humidity, motion, current, camera and RF sensor modules - plus relay, logic-level and breakout boards for prototyping and production.

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Specifications

Detection Range

Up to 7m (adjustable via potentiometer)

Detection Angle

~110-120°

Operating Voltage

4.5-20V DC (5V recommended)

Output

Digital (HIGH on motion, LOW after delay)

Delay Time

Adjustable, 5 seconds to 5 minutes

Trigger Mode

Jumper-selectable (repeatable / non-repeatable)

Quiescent Current

<50µA