Siterwell GS886F-H02 Hardwired Interconnected Smoke & CO Detector with 10-Year Backup Battery

Dual Protection for Your Home - Combining both CO detection and smoke alarm functionality in one compact device, a perfect space-saving solution to protect your family An alarm never yell at you - Siterwell alarm uses custom algorithms and a humidity sensor to distinguish between smoke and steam, so you can enjoy a delightful afternoon tea.  10-Year Sealed Battery - Contains a long-life lithium battery that powers the device for entire 10-year life English & French Audio Alerts – Offers immediate, easy-to-understand voice notifications in both languages Easy and Quick to Install -  easy to mount on any wall or ceiling without an electrician Premium Material - Made from an upgraded PC material that is heat-resistant, high-temperature resistant, and corrosion-resistant Slim and Stylish –  just 41 mm thick and 155 mm wide, blending easily with your home déco