related tags: 4B362C 5B311C 7D6057 9B97E0 A49DA8 A797AD ABA9CE AC8E71 B6421E B6A08C C0B2C3 C5AACB C6C0F2 C98F53 CA9F77 CAB49E D0CCE6 E0B389 alarm beijing detector fire housefire oakland persimmon smoke soundthealarm tree 905644