If you have a Kidde Nighthawk talking combination smoke and carbon monoxide detector installed in your home, you'll want to know about a recall that potentially affects your unit.  The recall covers the units with manufacturing dates between June 1 2004 and December 31, 2010.

According to news reports, the issue is that these units can fail to "chirp" when the battery has reached the end of its life, causing users to falsely believe that the detector is still operable.  The obvious result would be a dead battery, causing the homeowner to not receive an emergency signal in the event of a fire or carbon monoxide.

The manufacturer - Kidde - is suggesting that the recall affects 3.6 million units.  At this point there have been 8 reported incidents, but no reported injuries.  If you believe that you have one of the Kidde Nighthalk talking combination smoke and carbon monoxide detectors in your home, click here to get details about replacement.