DC 9V battery Smoke alarm with Best quality

BEST Model: EF-P7S

Optical Smoke Alarm
1.Unit Size:Φ104X35mm
2.Working Current:
   Static Current: ≤8μA
   Alarm Current: ≤16mA
3.Operation Voltage: DC 9V Battery
4.Alarm Sound: ≥85dB(3m)
5.Ambient Temperature: -10°C～+50°C
6.Ambient Humidity: ≤95%RH
7.Sensor: Optical
8. Low Battery Alert Remain: BB 30 days
9.Certificate:EN14604 & CE & RoHS 

10. 3 years quality guarantee