Kidde KN-COB-B-LS Nighthawk Battery Operated Carbon Monoxide Alarm

Protect your family and property with reliable carbon monoxide monitoring from Kidde. The Kidde Nighthawk KN-COB-B-LS battery-operated carbon monoxide alarm delivers continuous, maintenance-friendly CO detection ideal for residential and small commercial applications. Equipped with an electrochemical sensor and a loud 85 dB audio alarm at 10 feet, this compact unit detects hazardous CO levels and alerts occupants quickly for fast response. Powered by three AA batteries, the Nighthawk keeps monitoring through power outages and eliminates dependence on AC wiring. Built to last, the alarm includes an end-of-life alert after 10 years to prompt timely replacement and maintain compliance with safety best practices. CSA listed and sized for discreet placement in bedrooms, hallways, or rental units, this alarm complements your security and safety systems by providing essential air-quality surveillance and life-safety monitoring. Add the Kidde Nighthawk KN-COB-B-LS to your safety plan today—order now to upgrade household CO protection and peace of mind.

• Continuous, battery-powered CO protection so your home stays monitored even during power outages (3× AA batteries)
• Electrochemical sensor for dependable, low-false-alarm detection of dangerous CO levels
• Loud 85 dB alarm at 10 ft ensures occupants are alerted quickly for fast response and evacuation
• 10-year end-of-life warning simplifies maintenance and ensures long-term safety without frequent replacements
• Compact, easy-to-install design ideal for bedrooms, hallways, rentals, and integration into broader home security or monitoring plans