Carbon Monoxide Alarm

The Carbon Monoxide (CO) alarm will sound if CO in the air reaches dangerous levels. If you hear this alarm, evacuate the RV immediately and stay outside in fresh air until the CO alarm ceases.

The CO alarm is designed to be loud enough to wake up a sleeping person in an emergency. Prolonged exposure to the CO alarm at close distance may be harmful to your hearing. Individuals with hearing loss or certain medical problems, should consider using warning devices that provide both audible and visual signals.

If the CO alarm sounds, follow these instructions:

1. MOVE to fresh air immediately.

Go outside or to an open door/window, then execute your family safety plan.

2. DO NOT re-enter your RV.

3. If you are unable to exit, DO NOT move away from the open door/window until:

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Emergency service responders have arrived,

Premises have been aired out, and

The CO alarm returns to its normal condition.

4. If your CO alarm reactivates within a 24-hour period:

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Repeat steps 1-2.

Schedule an inspection by a qualified appliance technician, to check all fuel burning appliances are operating properly, and investigate for sources of carbon monoxide.

If problems are identified during this inspection, have the equipment serviced immediately.

5. Note any combustion equipment not inspected by the technician. For more information about CO safety and this equipment, consult the component manufacturer manual, or contact the manufacturer directly.

6. A motor vehicle or generator engine operating nearby is a possible source of CO inside your RV.

A CO alarm is NOT A SUBSTITUTE for other combustible gas, fire or smoke alarms.


The CO alarm will not function if the batteries are the wrong type, missing, disconnected, dead, or installed incorrectly. When the batteries become weak, the CO alarm will beep (the low battery warning). NEVER disconnect the batteries to silence the CO alarm. If the low battery warning sounds, the batteries MUST be replaced.

Testing the CO alarm

Press and hold the test/reset button on the front of the CO alarm for several seconds. If the CO alarm does not test properly, replace it immediately.


The CO alarm is pre-calibrated at the OEM factory and requires no maintenance other than to clean the outside casing occasionally with a cloth. Ensure that the holes on the front of the CO alarm are not blocked with dirt and dust.

DO NOT use cleaning agents, bleach or polish.