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Carbon Monoxide (CO) is an insidious poison. It is a colorless, odorless, tasteless gas. It is a
cumulative poison. Even low levels of CO have been shown to cause brain and other vital organ
damage in unborn infants with no effect on the mother.
The following symptoms are related to CARBON MONOXIDE POISONING and should be discussed
with ALL members of the household:
MILD EXPOSURE
Slight headache, nausea, vomiting, fatigue (often described as "flu-like" symptoms).
MEDIUM EXPOSURE
Severe throbbing headache, drowsiness, confusion, fast heart rate.
EXTREME EXPOSURE
Unconsciousness, convulsions, cardiorespiratory failure, death.
Many cases of reported CARBON MONOXIDE POISONING indicate that victims are aware they are
not well, but they become so disoriented that they are unable to save themselves by either exiting
the building or calling for assistance. Young children and household pets may be the first affected.
Your combination alarm is designed to detect the toxic CO fumes that result from incomplete
combustion, such as those emitted from appliances, furnaces, fireplaces and auto exhaust.
What Levels of CO Cause an Alarm?
Underwriters Laboratories Inc. UL2034 defines three specific alarm points by which
all residential CO alarms must alarm. They are measured in parts per million (ppm) of
CO over time (in minutes).
UL2034 Required Alarm Points:
• If the alarm is exposed to 400 ppm of CO, IT MUST ALARM BETWEEN 4 and 15
MINUTES.
• If the alarm is exposed to 150 ppm of CO, IT MUST ALARM BETWEEN 10 and 50
MINUTES.
• If the alarm is exposed to 70 ppm of CO, IT MUST ALARM BETWEEN 60 and 240
MINUTES.
The screen will indicate the current CO readings if higher than approx. 50 ppm on digital display
models.
Although this alarm will not automatically display levels below approx. 50 ppm, it will detect and
store these readings in memory. In typical ambient surroundings, CO concentrations may range
up to 50 ppm, which may be an indication of a temporary or intermittent condition. Sometimes
such a condition may start out as low-level leaks, but can develop into harmful CO concentrations.
If this happens, the CO alarm will detect the dangerous level and alarm, which should be treated
as an EMERGENCY. DO NOT ignore high concentration readings above 50 ppm or a CO alarm.
Accuracy of display readings may vary slightly depending on changes in the ambient condition
(temperature, humidity) and the condition of the sensor.
This product is intended for use in ordinary indoor locations of family living units. It is not designed
to measure compliance with Occupational Safety and Health Administration (OSHA) commercial
or industrial standards. Individuals with medical problems may consider using warning devices
which provide audible and visual warnings for carbon monoxide concentrations under 30 ppm.
YOUR CARBON MONOXIDE ALARM HAS BEEN DESIGNED WITH AN END-OF-SERVICE
LIFE ALARM WHICH WILL SOUND AFTER APPROXIMATELY 10 YEARS OF OPERATION
FROM INITIAL POWER UP.
NOTE: MANUFACTURER RECOMMENDS REPLACEMENT OF THIS ALARM 10 YEARS AFTER
DATE OF INSTALLATION.
NOTE: NUMEROUS ALARMS OR PROLONGED ALARMING IS NOT TYPICAL AND WILL
CONSUME THE BATTERY CAPACITY, SHORTENING THE LIFE OF THIS PRODUCT.
CONSTANT EXPOSURE TO HIGH OR LOWER TEMPERATURES, OR HIGH HUMIDITY, MAY
REDUCE BATTERY LIFE.
WHAT YOU SHOULD KNOW ABOUT CO
IMPORTANT CONSIDERATIONS
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