Description
The circuit illustrated here is used as an Burglar alarm. LDR is kept at such a place that when thief enters our house then a shadow will fall on the LDR. A small beam of light source is also needed to supply continuous signal to LDR. The circuit is constructed using NE555.
Product Features
- Audible output on simply touching.
- Safe and easy to perform.
- Descriptive operating manual with procedure.
- Circuit diagram with PCB Layout for better understanding.
