The Kidde® 900-0076 AC powered, plug-in carbon monoxide alarm utilizes sophisticated electronic components and unmatched sensor technology to protect you and your family from the dangers of CO. The 900-0076 includes a 9 VDC battery backup that provides continuous monitoring of CO levels, even during power outages, when AC-only units are not providing protection. The 900-0076 will detect and store measured data of concentrated CO levels as low as 11 and up to 999 ppm with its peak level memory display. This alarm gives you several mounting options, including direct plug, a 6 ft power cord or table top.

Kidde® Nighthawk™ Carbon Monoxide Alarm, AC Powered Plug-In, 120 VAC, 70 to 400 ppm, Electrochemical Sensor, Alarm: Audible, 85 db at 10 ft Alert, 5 to 95 % Humidity, LED, Plug-In Wiring, 40 to 100 deg F Operating, Plastic, White, 6-1/16 in L x 3-3/4 in W x 1-3/4 in H

• Digital display displays the level of carbon monoxide the unit is sensing
• The unit updates this reading every 15 s
• Peak level button displays the peak carbon monoxide level recorded by the alarm since it was last reset or unplugged
• 9 VDC battery backup provides protection during power outage
• Test button functions tests the unit for proper operation
• Resets the carbon monoxide alarm
• LED operation blinking dot in lower right corner of display denotes normal operation
• Digital readout displays carbon monoxide concentration in 30 to 900 ppm

• Specification Sheet https://assets.unilogcorp.com/2/ITEM/DOC/UT_21006973_Specification_Sheet.pdf