Carbon Monoxide Alarms at the End of their Life

Carbon Monoxide Alarms at the end of their Life

 
The February 28, 2008, edition of the Underwriters Laboratories (UL) standard for carbon monoxide (CO) alarms incorporates a major change that requires all CO alarms produced after August 1, 2009, to have an end-of-life signal. This signal is to activate once the device reaches its projected end-of-life.
 
Newer CO alarms have signals for alarm, trouble, and end-of-life. The end-of-life signal may or may not be the same signal as a trouble alarm, providing that there is a visual indicator on the CO alarm to indicate that it is an end-of-life alarm. It is important to note that when an end-of-life signal is sounded, the CO alarm must be replaced. This is true if the unit is a stand-alone CO alarm, or in a combination unit with a smoke alarm.
 
Although CO alarms have been required in all dwelling units since January of 2007, many were made prior to new requirements and will not have an end-of-life signal. If your CO alarm does not have the end-of-life feature, was manufactured prior to August 2009 or you cannot find a manufacture date, consult the accompanying manuals or visit the manufacturer’s website. If no additional information can be found, serious consideration should be given to replacing the CO alarm.
 
Authority of Fire Chief Michael Zywanski


 
 
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