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Photoelectric Smoke Alarm With CE

Photoelectric Smoke Alarm With CE
Ef 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 datas
Battery: dc 9v (not included)
Alarm sound: > =85db (3m)
Static current: Alarm current: 70ma
Low voltage alarm: 5. 5v~6. 2v
Work temperature: -5~ + 40centigrade degree
Working humidity: Low battery alert remain: 7-15 days

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