Fortress Security Store Guardian Stand-Alone Alarm Kit Wireless Sensor Security System

This one is a step ahead of the basic Guardian version. Covering the same area of 25 feet and 110 degrees side-to-side, your package includes door/window contact sensors with it. The aforementioned magnetic sensors communicate wirelessly with the guardian. Apart from this, you also have an option to choose between two distinct modes, precisely siren and doorbell. Also, the security system is compatible with 17 other accessories to avail you extra protection.