You can rely on the Ei650W smoke alarm. Whether stand-alone or networked with other Ei Electronics components, the detector impresses with maximum reliability - from the moment it is commissioned until the end of its service life. To ensure that alarms are triggered throughout the entire house, the smoke detector can optionally be networked by radio; the Ei600MRF radio module is available separately. Thanks to its long-lasting 10-year battery, the fire alarm provides reliable protection against fire hazards for the full 10-year service life. The device, which is manufactured in the EU, checks every 10 seconds whether there are smoke particles in the room air. As soon as this is the case, the smoke alarm device warns you immediately with its integrated 85 dB(A) piezo alarm. And because nothing is more annoying than frequent false alarms, the Ei650 is protected against disruptive incidents with soiling compensation. In addition, it does not require an LED or annoying flashing light and is completely suitable for use in bedrooms.