smoke detector alarm
1.Photoelectric sensor Material: ABS
2.220V with Battery 9V back up
3.Low battery and sensitivity

smoke detector alarm

1. Material: ABS
2. Battery 9V DC
3. Working current:≤5μA
4. Alarm sound: ≥85dB (3m)
5. Working temperature: -10 to +40°C
6. Photoelectric sensor particularly effective detecting smoldering fires
7. Built-in 85dB sounder and flashing red LED will indicate presence of smoke
8. Manual test button help to verify battery status and alarm operation
9. Low battery and sensitivity detection
10. Tamper-resistant protection
11. Measurement: 54*46*37cm
12. Quantity: 47pcs/ctn
13. Net weight: 11.7kg
14. Gross weight: 12.7kg