DC Operated Photoelectric Fire Alarm/Smoke Detector with EN14604 approval(smoke alarm,home alarm) DC operated Photoelectric Fire Alarm/Smoke Detector (smoke detector, home alarm)1.Photoelectric sensor for slow ... -battery and battery missing warning indicator9.Automatic reset when smoke clears10.Compact size: 110mm diameter11. CE, BSI, SAI global, TUV approved, Comply ...