PIR Motion Sensor (HC-SR501)

The HC-SR501 PIR Motion Sensor is a compact and efficient passive infrared sensor designed to detect motion by sensing changes in infrared radiation, such as body heat. When movement is detected, the sensor outputs a digital signal, making it suitable for triggering alarms, lights, or other automated responses.

This module features adjustable sensitivity and delay time, allowing users to fine-tune detection distance (3 to 7 meters) and response duration (5 to 200 seconds). Its wide operating voltage range (4.5V to 20V) and low current consumption (<60µA) make it ideal for battery-powered and energy-efficient applications.

Applications:

• Burglar alarm systems
• Automated lighting control
• Home and commercial security
• Smart energy-saving systems
• Automatic door openers

Specifications:

• Model: HC-SR501
• Operating Voltage: 4.5V – 20V DC
• Current Drain: <60µA
• Detection Distance: 3 – 7 meters (adjustable)
• Detection Angle: <140°
• Delay Time: 5 – 200 seconds (adjustable)
• Output: 3.3V TTL signal
• Dimensions: 32mm x 24mm x 18mm
• Operating Temperature: -20°C to +80°C

Package Includes: 1 x HC-SR501 PIR Motion Sensor Module

This sensor is featured by RoboticsBD and is a reliable solution for motion detection in smart and automated environments.