With 5 year manufacturer's warranty, the SA300UK is a great value battery powered ionisation smoke alarm.The alarm benefits from both test and hush button facility, making it easy to check functionality and silence false alarms.
Ionisation smoke sensor - quick to detect fast flaming fires 9V alkaline battery powered (battery included) 5 year warranty Test/hush button feature Provides a low battery warning chirp to indicate when the battery needs replacing Sound output: 85dB audible alarm when activated