![Figure 3 from LASER based security system using wireless sensor network and GPRS/GSM technology for inland aquaculture in Bangladesh | Semantic Scholar Figure 3 from LASER based security system using wireless sensor network and GPRS/GSM technology for inland aquaculture in Bangladesh | Semantic Scholar](https://d3i71xaburhd42.cloudfront.net/9805e06fd599c262b1f1b518da13e181343861ea/2-Figure3-1.png)
Figure 3 from LASER based security system using wireless sensor network and GPRS/GSM technology for inland aquaculture in Bangladesh | Semantic Scholar
![Figure 3.1 from Design and Development of a Smart Auto Intruder Alarm System with GSM Network | Semantic Scholar Figure 3.1 from Design and Development of a Smart Auto Intruder Alarm System with GSM Network | Semantic Scholar](https://d3i71xaburhd42.cloudfront.net/1a89dadd6b5446354a97e70a071fdfb6e469b99c/3-Figure3.1-1.png)
Figure 3.1 from Design and Development of a Smart Auto Intruder Alarm System with GSM Network | Semantic Scholar
![Burglar #AlarmCircuit Diagram #EEE #ECE | Wireless home security systems, Home security tips, Home security systems Burglar #AlarmCircuit Diagram #EEE #ECE | Wireless home security systems, Home security tips, Home security systems](https://i.pinimg.com/originals/45/62/a3/4562a33014f20d182cc85417fa64f484.jpg)