Photoelectric hardwired smoke alarm
1. Power supply: AC 220V-240V 50Hz, with DC 9V alkaline battery back up.
2. Conform to EN14604:2005/AC:2008.
3. Alarm volume: ≥85dB/3m.
4. Big test button for easy weekly testing.
5. Silence function: Approx.10mins.
6. Low battery signal alarm.
7. Produce life time >10 years.
8. Wired interconnection up to 40pcs.
9. Push base for easy installation.
10. Size: Φ 140mm × 44.9mm.