| 摘要 |
A low-profile signal device is provided having a plurality of light emitters disposed on at least one support member, the plurality of light emitters configured to emit light in a plurality of colors that indicate one or more predefined conditions; a housing substantially enclosing the at least one support member; a signal interface coupled to the plurality of light emitters and configured to selectively activate light emitters from the plurality of light emitters in response to a received control signal. |
