Part One - Your Kidde Co Alarm; About Your Co Alarm - Kidde KN-COB-DP-H User Manual

Part One – Your Kidde CO Alarm

About Your CO Alarm

While many other CO alarms require costly sensors or a proprietary
battery pack replacement, there are no replacement parts on
Kidde CO alarms and they use standard alkaline batteries (if
equipped).
Kidde CO Alarm – front view
Green
Operate
Light
4
Red
Alarm
Light
Test/Reset
Button
Sounder
Alarm