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Thank you for purchasing the Kidde
Combination Smoke and Carbon Monoxide Alarm
Model # KN-COSM-BCA.
This alarm has a five-year limited warranty.
Please take a few minutes to thoroughly read this
user’s guide, and save for future reference. Teach
children how to respond to the alarms, and that they
should never play with the unit.
Your Kidde Smoke/CO Alarm was designed to detect
both smoke and carbon monoxide from any source of
combustion in a residential environment. It is not
designed for use in a recreational vehicle (RV) or boat.
If you have any questions about the operation or
installation of your alarm, please call our toll free
Consumer Hotline at 1-800-880-6788.
The guide on page 25 will help you determine the
correct location of safety products that will help keep
your home a safer place.
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Illustrations . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . 9-14
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-17
Alarm Removal . . . . . . . . . . . . . . . . . . . . . . . . . 17
Alarm Replacement . . . . . . . . . . . . . . . . . . . . . 17
Battery Replacement . . . . . . . . . . . . . . . . . . . . 18
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Carbon Monoxide Safety . . . . . . . . . . . . . . 20-23
Fire Safety . . . . . . . . . . . . . . . . . . . . . . . . . . 24-26
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . 27-29
Table of Contents
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