smoke detector![click to hear](/images/speaker.jpg)
Device that emits a powerful alarm signal when it detects smoke.
base ![click to hear](/images/speaker.jpg)
Part of the detector that is attached to a surface; the cover screws into the base.
cover ![click to hear](/images/speaker.jpg)
Part of the detector that shields the smoke detection mechanism.
indicator light ![click to hear](/images/speaker.jpg)
Light indicating that the detector is in alarm mode.