The Bosch Smart Home Smoke Alarm reliably alerts you using smart technology. Receive notifications via the app when you're away or hear a siren at home. It also transmits alarms to other connected smoke alarms/Twinguards in your house. In emergencies, integrated smart system lamps illuminate escape routes, the shutters rise to open exits, and automatic live feeds from cameras provide an overview. Room-specific alarm assignments and an emergency call button in the alarm screen allow for quick action. The dust compensation feature minimizes false alarms from natural house dust. The smoke alarm's sirens can also sound during a break-in, deterring intruders. It integrates with Apple HomeKit, enabling combination with other compatible devices. Features include a replaceable 3-volt lithium battery with up to 5 years of lifespan (depending on usage), quick deactivation for false alarms (e.g., while cooking) via the easily accessible cover, and a discreet, modern design. The smoke chamber has a service life of 10 years. Mounting is quick with included screws and adhesive, and setup is simple with in-app instructions. Specifications: Dimensions: 3.7H x 11W x 11D cm. Weight: 0.4 kg. Colour: White. Model Number: 8750002142. Siren sound level: 85dB.