An appropriate wireless surveillance system for your house, office, cottage, perimeter. You can manage it through APP by being a control center yourself.
Claiming surveillance systems are wireless and highly customer-friendly. Although all systems are heading towards the APPs used in smartphones, the current system already is there. All sensors are wireless, however if there already are installed sensors, by adding an extra device, you can connect these sensors to a central processing unit and nevertheless use it via your smart device.