Twitter rules-spotted another recall item online.
A national recall has been issued for 1.5 million Kidde smoke detector and carbon monoxide alarms in Canada because they may not chirp in the case of an emergency.The recall applies to two Kidde NightHawk models that are hard-wired into a home's electricity and were manufactured between June 2004 and March 2011. The affected models are:

  • KN-COSM-IBCA, which has a battery backup
  • KN-COSM-ICA, which doesn't have a battery backup

The issue is the alarm may no longer chirp in the model with battery backup even after the original batteries have been replaced. In the case of the model without battery backup, the chirp may not work if power is removed and then restored.
"This could lead consumers to believe it is still working, which poses a risk to consumers not being alerted to a fire or carbon monoxide incident in their home," said the Health Canada recall notice.
http://www.cbc.ca/news/canada/kidde-...call-1.3855041