Black + Decker Connected Smoke Alarm. Wirelessly Interlinked. 10 Year Sealed Lithium Battery Included. Optical Sensor.

Connected Alarms When One Device Triggers All Connected Devices Will Trigger: Black + Decker Connected Devices Can Be Interlinked Wirelessly Using Radio Frequency (Rf10-pro) Technology. Wirelessly Connect and Interlink Up to 20 Devices for Full Home Detection. Wirelessly Connect the Full Range of Black + Decker Connected Alarms, Including Smoke, Heat and Carbon Monoxide Alarms and Wireless Controller.

Smoke Detection for Your Home: The Black + Decker Smoke Alarm Comes With an Optical Sensor, Which Responds Fast to Slow, Smouldering Fires as Smoke Enters the Alarm Smoke Chamber, Triggering the Device. Ideal for Living Spaces in the Home, Avoid Kitchens.

10 Year Sealed Lithium Battery, 10 Year Product Life: The Sealed, Tamper Proof 10 Year Lithiumbattery Lasts the Life of the Alarm, the Alarm Will Indicate When the Alarm Needs Replacing.

Test Button: Large Test Button is Easy to Use and Access to Test Your Device and Ensure It is Working Correctly.

Quality Assured: This Smoke Alarm is Suitable for Domestic Properties. This Smoke Alarm is Third Party Approved and Kitemark Certified by the British Standards Institute (Bsi) to the British Standard Bs en 14604:2005+ac:2008.