Features:
Product Type: Infrared body detection sensor
Detection Method: Passive infrared sensing
Input Voltage: DC 4.5V to 20V
Output Type: Digital high and low
Detection Range: Adjustable approximately 3–7 meters
Detection Angle: Approximately 110 degrees
Delay Time: Adjustable approximately 5–300 seconds
Sensitivity: Adjustable onboard control
Trigger Modes: Repeatable and non-repeatable
Compatibility: Arduino and microcontrollers
Applications: Automation and detection projects
Description:
Enhance your DIY automation projects with the HC-SR501 PIR Human Motion Sensor Module. This infrared body detection sensor is designed to detect changes in infrared radiation caused by human movement and provide a digital output signal for connected electronic circuits. It is widely used in Arduino projects, automatic lighting, alarm systems, smart home projects and other electronic automation applications.
The HC-SR501 features adjustable sensitivity and adjustable delay time, allowing users to customize detection performance according to their project requirements. Its compact PCB design and simple pin connections make it suitable for students, electronics hobbyists and DIY project makers.
This PIR sensor module is commonly used for automatic light switching, human presence detection, security alarms and energy-saving automation projects. Available quantity options make it convenient for single projects or multiple DIY installations.



