The Abus Smartvest smoke and heat detector reliably protects you from dangerous smoke and heat development in your living or working spaces and reduces the likelihood of false alarms as a combination detector. To ensure safe protection against fire and smoke, the manufacturer recommends installing the device in the bedroom, children's room, hallway, and other living areas. When the battery is low, the device notifies the Smartvest control panel. A generous test button makes manual function testing easy and also allows for a test alarm. With the help of the separately available magnetic mounting kit, you can install the device cleanly, quickly, and securely, without the hassle of drilling. The two AA batteries required for operation are included in the package.