Why you need to change? It is supposed to work for more than 10

所有跟帖： 

• 嫂瑞，房子是2001 建的，这东西换了新电池还叫，这房子明年出租 -hz82000- ♀ (41 bytes) () 12/09/2018 postreply 13:57:40

• 除了烟雾警报器，你那里要不要CO警报器？ -hhtt- ♂ (0 bytes) () 12/09/2018 postreply 15:01:51

• 就烟雾吧 -hz82000- ♀ (0 bytes) () 12/09/2018 postreply 15:29:25

• fed code只能用十年 -sweetptt- ♂ (0 bytes) () 12/09/2018 postreply 14:20:31

• +1, 十年就是不坏也一定要换！ -hhtt- ♂ (0 bytes) () 12/09/2018 postreply 14:54:43