필요한 것
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이 단계는 번역되지 않았습니다. 번역을 도와주십시오
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Use a screwdriver to pry open the plastic enclosure. It might be easier to push the buzzer through the hole, if you need extra leverage.
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이 단계는 번역되지 않았습니다. 번역을 도와주십시오
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This is the circuit for the smoke detector. It is powered by a 9V battery. The 3 metal leafs are contacts for the buzzer and the bigger leaf is for the test button.
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