StreetSiren is a wireless outdoor alerting device with a sound volume of up to 113 dB. Equipped with a bright LED frame and pre-installed battery, StreetSiren can be quickly installed, set up, and operate autonomously up to 5 years. Connecting to the Ajax security system via the secured Jeweller radio protocol, StreetSiren communicates with the hub at a distance of up to 1,500 m in line of sight. The device is set up via the Ajax apps for iOS, Android, macOS, and Windows. The system notifies users of all events through push notifications, SMS, and calls (if activated).