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-  The sensor in the carbon monoxide monitor has reached the end of 

its service life. 

 

-  Carbon monoxide levels exceeding the removal capacity of the 

system may be present. 

 

f.   The amber-colored indicator will light when a low battery condition exists. 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

© 3M April 2007. All rights reserved.

 

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