Kidde KN-COB-DP-LS (6 Pack) Carbon Monoxide Detector, 120VAC Plug-In Nighthawk w/9V Back-Up Battery (21007329) - 6 Pack

by Kidde


The Kidde KN-COB-DP-LS (6 Pack) is for a 6-pack of Nighthawk carbon monoxide (CO) alarms. They plug-in simply into a standard 120V outlet. These models offer a 9V battery back-up so that they can operate effectively even if a unit slips or falls from the outlet or if electricity is lost. Electrochemical technology in these Kidde plug-in alarms detects harmful CO levels, which sets off a loud 85 decibel pulsing alarm.

These in Kidde carbon monoxide detectors feature a test/reset button that makes regular weekly testing incredibly simple. This button also silences the alarm, resetting it in the process. Furthermore, these units features an alert that notifies the user when these alarms have been unplugged or have come loose from the outlet. This functionality can be disabled, if desired.

This 6-pack of Kidde CO alarms provide an easy way to thoroughly protect a residential or commercial space against the threat of carbon monoxide poisoning. Plug-in functionality makes for a quick and straightforward installation. These Kidde KN-COB-DP-LS alarms are also available individually.


  • Tamper Resist Feature – Unit goes into constant alarm mode if it has been unplugged or has come loose from the outlet.
  • 9V Battery Backup – Provides continuous protection even during power outages.
  • Test/Reset Button – Tests the unit for proper operation. Resets the Carbon Monoxide alarm.
  • 7-Year End of Life Warning – Alerts user to replace CO alarm after 7-years of operation. (40% longer than other CO alarms)
  • UL Listed – Lifelong Warranty


  • Ordering Number: 21007308
  • Power Source: 120VAC, 60HZ, 60mA max, 9V battery back-up
  • Audio Alarm: 85dB at 10ft
  • Temperature Range: 40°F (4.4°C) to 100°F (37.8°C)
  • Humidity Range: 10%-95% relative humidity (RH)
  • Sensor: Electrochemical
  • Size: 3.0" x 5.6" x 1.5"
  • Weight: .62 lbs. with battery
  • LED: N/A
  • Interconnects: No
  • Warranty 7 year limited

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