Fire Angel SW10-EUT Mains Sealed Smoke Alarm

Mains powered with battery backup Designed to make protecting your home simple, with easy install and rigorous testing by independent parties, such as BSI Kitemark, to ensure quality and longevity. Optical sensing - a fast response to slow burning fires. Testing made simple with large self-test button Includes a safety clip feature to prevent installation of smoke alarm without back-up battery installed.