The smoke detector Ei650W can be relied on! Whether self-sufficient or networked with other Ei Electronics components, the detector is extremely reliablefrom the moment of commissioning to the end of the operating period. In order to ensure an alarm throughout the house, the smoke detector can be linked optionally by radio, the radio module Ei600MRF is available separately.Thanks to its durable 10-year battery, the fire detector reliably protects against fire hazards over the full 10-year lifespan. For this purpose, the device manufactured in the EU checks every 10 seconds whether there are smoke particles in the room air. Once this is the case, the smoke detector warns immediately with its integrated 85dB(A) loud piezo alarm. And because nothing is more annoying than common false alarms, the Ei650 is protected against disturbances by pollution compensation. In addition it manages without LED or disturbing flashlight and is completely suitable for bedroom.This text is machine transl