Kidde® 21010075 Model C3010-D Carbon Monoxide Alarm, 70 to 400 ppm Detection, Electrochemical Sensor, Sealed Lithium Battery, LED Display, 85 db at 10 ft
Kidde® 21025759 AC Powered Plug-In Carbon Monoxide Alarm, 70 to 400 ppm Detection, Electrochemical Sensor, 120 VAC, 60 mA Max, 60 Hz/9 V Battery Backup, LED Display, 85 dB at 10 ft