NEW NIGHTHAWK 2000 CARBON MONOXIDE DETECTOR (900-0014-00) See more like this New Listing Kidde KN-COPP-3 Nighthawk Plug-In Carbon Monoxide Alarm with Battery Backup and Brand New Nighthawk Battery Operated Carbon Monoxide Alarm • Part Number 900-0233 • Model KN-COB-B-LS . Description. The Nighthawk 900-0233 battery operated carbon monoxide alarm is an easy to install unit that provides reliable protection against the dangers of carbon monoxide. Written information and instruction make this unit's operation easy for anyone to understand. Kidde Carbon Monoxide Detectors. Home Improvement. Home Safety. Kidde Carbon Monoxide Detectors. Showing 40 of 333 results that match your query. Product - Kidde Carbon Monoxide Alarm AC Powered, Plug-In with Battery Backup KN-COB-DP2. Best Seller. Product Image. Carbon monoxide alarm RedLEDflashes withbeeps. Repeating ON/OFFbeeps Alarmcondition. Dangerous concentrationsof COdetected Referto"Whattodo WhentheAlarm Sounds"(insidefront cover) Low battery RedLEDflashes every30seconds Onequick beepevery 30seconds Batteriesneedtobe replaced ReplaceallthreeAA batteries Error/ service alarm RedLEDflashes NEW Kidde Nighthawk Carbon Monoxide Alarm with Digital Display KN-COPP-B-LP C3. Brand New · Kidde. $19.99. Buy It Now +$9.30 shipping. Only 1 left! 1 Watching. SPONSORED. Nighthawk Plug-In Carbon Monoxide & Explosive Gas Alarm with Battery Backup Safe. Brand New · Kidde. Saves lives! Carbon monoxide could be in your home and without a detection device you wouldn't even know it until you've already been poisoned. That's because carbon monoxide is undetectable to human senses - invisible, odorless, tasteless and non-irritating. Low level carbon monoxide can cause chronic flu-like symptoms including headaches, nausea, fatigue, dizziness and confusion. Hopefully you have found a solution for your Carbon Monoxide Detector issue of October 4, 2009. The best solution for a questionable CO dectector is a replacement. A Carbon Monox