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Arduino Security and Alarm System Project - How To Mechatronics | Home security systems, Wireless home security systems, Best home security
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Arduino home security system using Sim900 Gsm module, Pir motion detector and magnetic door contact switch
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Amazon.com : HTZSAFE Solar Wireless Driveway Alarm System- 1/2 Mile Long Transmission Range- 300 Feet Wide Sensor Range- No Wiring No Need Replace Battery- Outdoor Weatherproof DIY Security Perimeter Alert System : Electronics
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