Visible on the house, the Bosch Smart Home Smart Outdoor Siren serves as a deterrent for any potential burglars. Should the burglars decide to strike nonetheless, the siren sounds an alarm at a volume of 100 dB and the red LED lights flash, and at the same time, you are also informed via push notification – even when you’re not at home.The smart alarm siren can be installed wirelessly as a sustainable solution thanks to the solar panel or alternatively using 230 V (AC) or with a low-voltage supply of 5-28 V (DC). The integrated back-up battery, which is charged via the solar panel, also guarantees a reliable alarm system even during a power cut or in overcast weather conditions. It also reacts with the siren alarm and app notification if someone attempts to remove it.The siren is compatible with existing wired and off-grid alarm systems and can replace the existing siren with a modern design, or even make them smart if you connect your classic alarm systems via the Smart Home