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![Security System Using PIR Sensor - Hackster.io](https://i2.wp.com/hackster.imgix.net/uploads/attachments/1095266/ckt_diagram_5F1O3OxiNT.png)
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![PIR SECURITY SYSTEM USING GSM AND LCD - ALL IN ALL INFOS](https://3.bp.blogspot.com/-BRtp3W5xOK4/W4gVqYt5w3I/AAAAAAAAAZc/WrKMe3fINpIeXtMPeLDm9gy1ot_jYOuBQCLcBGAs/s1600/circuit_orig.png)
Pir based security system
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![Alarm Movement Sensor (PIR), How & Where To Fit | Ultra Secure Direct](https://i2.wp.com/www.ultrasecuredirect.com/blog/wp-content/uploads/2014/01/PIR-Installation-2.jpg)
![PIR based security system](https://i2.wp.com/image.slidesharecdn.com/ijeecs-180908143721/95/pir-based-security-system-4-638.jpg?cb=1536417530)
PIR based security system
![Arduino Based Security System using GSM & PIR Sensor](https://i2.wp.com/www.engineersgarage.com/wp-content/uploads/2019/07/Block-Diagram-Arduino-Pir-Sensor-Based-Home-Security-System.png)
Arduino Based Security System using GSM & PIR Sensor
![Wireless Security System Using PIR Sensors | Full Electronics Project](https://i2.wp.com/www.electronicsforu.com/wp-contents/uploads/2018/07/Block-diagram-of-wireless-security-system-using-PIR-sensors-500x259.jpg)
Wireless Security System Using PIR Sensors | Full Electronics Project
![RFID Based Security System using 8051 Microcontroller](https://i2.wp.com/circuitdigest.com/sites/default/files/circuitdiagram_mic/RFID-Security-System-Circui.gif)
RFID Based Security System using 8051 Microcontroller
![PIR based security system](https://i2.wp.com/image.slidesharecdn.com/finalprojectreport-180908144405/95/pir-based-security-system-66-638.jpg?cb=1536417977)
PIR based security system
![Automatic Room Light ON Circuit Using PIR Motion Sensor, PIR Motion](https://i.pinimg.com/originals/62/0b/4f/620b4fade3bc5c29b94f32f9b1d00a70.jpg)
Automatic Room Light ON Circuit Using PIR Motion Sensor, PIR Motion
![Home Security Alarm Using PIR Sensor & Arduino for Night](https://i2.wp.com/www.how2electronics.com/wp-content/uploads/2018/11/Circuit-Diagram.jpg)
Home Security Alarm Using PIR Sensor & Arduino for Night