Wide detection range (3 m to 7 m) covers large areas for versatile installation
Adjustable sensitivity and time delay allow precise motion detection for various applications
Dual trigger modes (single and repeatable) enable both immediate and continuous alerts
Ultra-low power consumption (65 μA) supports battery-powered projects
Simple digital 3.3V output directly compatible with Arduino and most microcontrollers
Summarized by Shop
Detect motion instantly with the HC-SR501 PIR Motion Detector Sensor Module — the most popular passive infrared sensor for Arduino, ESP32, and Raspberry Pi projects. It detects the infrared heat signature of people, animals, and other warm objects up to 7 meters (21 feet) away across a 120° detection cone, and outputs a clean 3.3V digital