- Operating indicator
- Low battery warning
- Battery lifeapproximately 1 year
- Test button
- Loud piezo electric alarm 92d B at 3m
- Battery included
- Available as a single order code YD53 or as a twin-pack order code YD54. The Micro 300 smoke & fire alarm is of compact design & is easy to install. It complies to BS5446 part one comes complete with a five year manufacturers guarantee.