Kidde Nighthawk CO & Explosive Gas Alarm – Plug-In Detector with Battery Backup

Reliable protection for CO and explosive gases

The Kidde KN-COEG-3 Nighthawk plug-in detector is UL-listed for home use. It protects against carbon monoxide as well as explosive gases like methane and propane, with a digital display that shows current readings, so you can see if CO or gas levels are changing.

Easy to install and designed for continuous protection, it plugs into a standard 120V outlet and includes a 9-volt battery backup to stay vigilant during power outages. An 85-decibel alarm and clear visual cues alert you when readings rise, while the display can show peak CO levels since last reset.

Key features that support everyday use

• Easy installation: plug-in to a standard outlet, with a backup battery for outages
• Clear visibility: digital LED display shows CO levels in ppm and indicates GAS when explosive gas is detected
• Audible and visible alerts: loud alarm plus display alert help you notice changes quickly
• Reliable design: UL-listed with a seven-year life and a five-year limited warranty

Placement for comprehensive coverage

For best protection, place detectors on every level of your home and use the included 6-foot extension cord to position the unit where you sleep or spend time. The compact, low-profile design fits kitchens, living rooms, bedrooms, and hallways without drawing attention.

In real-use scenarios, this detector provides a dependable readout and alerts that support informed decisions, rather than promising a specific outcome. It offers visibility into readings and helps you prepare to act with confidence.