Installation Guide
companies and HVAC contractors will perform CO inspections, some may charge 
for this service. It’s advisable to inquire about any applicable fees prior to having 
the service performed. Kidde will not pay for, or reimburse the owner or user of 
this product, for any repair or dispatch calls related to the alarm sounding.
SYMPTOMS OF CO POISONING
Initial carbon monoxide poisoning symptoms are similar to the flu with no fever 
and can include dizziness, severe headaches, nausea, vomiting and disorienta-
tion. Everyone is susceptible but experts agree that unborn babies, pregnant 
women, senior citizens and people with heart or respiratory problems are espe-
cially vulnerable. If symptoms of carbon monoxide poisoning are experienced 
seek medical attention immediately. CO poisoning can be determined by a car-
boxyhemoglobin test.
The following symptoms are related to CARBON MONOXIDE POISONING and 
should be discussed with ALL members of the household:
1. Mild Exposure: Slight headache, nausea, vomiting, fatigue (often described 
as “Flu-like” symptoms).
2. Medium Exposure: Severe throbbing headache, drowsiness, confusion,  
fast heart rate.
3. Extreme Exposure: Unconsciousness, convulsions, cardio respiratory 
failure and death.
The above levels of exposure relate to healthy adults. Levels differ for those 
at high risk. Exposure to high levels of carbon monoxide can be fatal or cause 
permanent damage and disabilities. Many cases of reported carbon monoxide 
poisoning indicate that while victims are aware they are not feeling well, they 
become so disoriented they are unable to save themselves by either exiting the 
building, or calling for assistance. Also, young children and household pets may 
be the first effected. Familiarization with the effects of each level is important. 










