Adding Motion Sensors to your iSmartAlarm Home Security System provides additional security throughout your home. The sensor instantly notifies the system of movement in any area of the home, and can trigger the CubeOne™’s 110 dB siren to frighten away intruders. With motion detection capabilities up to 30 feet away, you can adjust the sensitivity settings and angles of the sensor to best fit your needs and lifestyle. Up to 80 Sensors can be added to the self-monitored, self-controlled wireless security system, and iSmartAlarm has no monthly fees or contracts to worry about. The iSmartAlarm app allows you to arm, disarm and monitor your security system from your iPhone and Android device at any time, from anywhere. If you need additional security for your iSmartAlarm DIY Smart Home Security System, Motion Sensors are a great way to cover large areas and will give you the protection you need.