The Fibaro Smoke Sensor is one of the smallest wireless smoke detectors in the world. Unlike other comparable devices, this smoke detector fits perfectly into any interior design thanks to its modern design. Plug and Play: very easy installation without drilling or wiring. It detects a rapid increase in temperature and can trigger an alarm as soon as a temperature threshold is exceeded. There are three levels of sensor sensitivity. It is compatible with any Z-Wave controller and can be integrated with any standard alarm system. It is powered by a single battery with a lifespan of up to two years.