SEN-0021 Pir Sensor Hc-Sr501 Motion Sensor
Category: Sensor Collections
A PIR-based motion Detector is used to sense movement of people, animals, or other objects. They are commonly used in burglar alarms and automatically-activated lighting systems. They are commonly called simply "PIR", or sometimes "PID", for "passive infrared detector".
- Principle used - 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
- Operating voltage - 5v
- Type - digital sensor
- Range - adjustable from few feet - upto 20feet