November 20, 20169 yr comment_9489 Not seen one, but why would you want one without? By way of the LED flashing indicates the device is powered, and so should work. Report
November 21, 20169 yr comment_9490 Only a grade F smoke alarm will not have a LED all mains fed smoke alarms will, as indicated by green-foam above, also the Grade D, mains fed smoke alarms are the recommended ones. Report
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