Wireless outdoor siren that notifies of danger using sound and light. The device is installed outside the room to raise an alarm for everyone to hear. The device notifies of detector activation with an audible alarm and LED. Sound level and alarm length are set in the mobile application. - Resistant to dust, hail and rain drops. Operates at a temperature of -25°? - Indicates armed/disarmed mode with a built-in LED - Operates up to 5 years without battery replacement or from 12 V DC power supply