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Photoelectric Smoke Alarm With CE
DescriptionEf series are photoelectric smoke alarms, they are generally more effective at detecting smoldering fires which smolder for hours before bursting into flame. Sources of these fires may include cigaretters burning in couches or bedding.Technical datasBattery: dc9v (not included)Alarm sound: >=85db (3m)Static current:Alarm current: 70maLow voltage alarm: 5. 5v~6. 2vWork temperature: -5~ + 40centigrade degreeWorking humidity:Low battery alert remain: 7-15 days
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