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First Alert 9120B 烟雾报警器 电池更换

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First Alert Smoke Alarm 9120B Battery Replacement: crwdns2935265:00crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 First Alert Smoke Alarm 9120B Battery Replacement: crwdns2935265:00crwdnd2935265:02crwdnd2935265:02crwdne2935265:0

  • Remove the battery and dispose of it properly.

  • Replace the old battery with a new 9V battery and close the compartment.

  • You should hear a click to know that the compartment is secured.

从电池舱中取出旧电池，妥善处理。

放入新的9V电池，关闭电池舱。

关闭时可以听到一声清脆的卡扣声，代表电池舱已锁紧。

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