The EVA LOGIK Siren generates a loud 120db alert sound when it is triggered or when activated by z-wave controllers, deterring burglars and notifying you and your family of trouble, every 10 seconds checks. The siren can be controlled either through the app or from a Keypad, Mini Remote or another controller. The device is powered by its AC adapter, but it includes a battery backup in case of power interruption. Anti-tamper feature sends you an alert if the sensor’s cover is removed, or power is cut.