Kidde
Kidde 900-0230 30 – 999 ppm 85 dB NightHawk Carbon Monoxide Alarm – White
Best carbon monoxide detector for homeowners seeking reliable, long-term safety monitoring.
Protect your home and family with the Kidde NightHawk Carbon Monoxide Alarm. This battery-operated unit provides continuous monitoring of CO levels using advanced electrochemical sensing technology. Its clear digital display shows current readings, while flexible mounting options allow for placement on a wall or tabletop in any living area. Designed for reliability and peace of mind, this alarm offers essential protection and comes with a 10-year limited warranty, ensuring long-term safety.
$41.99
Owner Satisfaction
4.6
/ 5
Category Rank
4
/ 34
#4 in Carbon Monoxide Detectors
Price vs Category Average
-41%
Below average
CO Detection Range
30999
/ – ppm
Who it's for
- Homeowners needing immediate, precise data on air quality
- Heavy sleepers requiring a loud, reliable safety alert
- Renters or busy families wanting quick, tool-free setup
Who should skip it
- People with limited wall outlets in high-traffic areas
- Budget-conscious buyers preferring long-term, modular hardware
- Residents living in humid environments or near chemical sources
Performance breakdown
Detection Accuracy
Advanced electrochemical sensors provide precise, reliable monitoring of dangerous CO levels.
Display Clarity
The digital screen offers immediate, easy-to-read data for quick safety assessments.
Installation Versatility
Flexible mounting options allow for effortless placement on walls or tabletops.
Alert Effectiveness
The 85 dB alarm ensures high-volume alerts reach every corner.
Longevity
A decade of coverage provides exceptional long-term peace of mind.
Power Convenience
Battery operation eliminates the need for complex wiring during setup.
Key Specs
CO Detection Range
30 – 999 ppm
Alarm Volume
85 dB
Power Source
3AA Battery Operated
Response Time
4 to 15 min
Warranty
10 years limited warranty
Accuracy
+/-30 %
Color
White
Model Number
900-0230
Features
- Continuous CO level monitoring
- Digital display for easy readings
- Electrochemical sensing technology
- Flexible wall or tabletop mounting
- Battery operated for convenient placement
- Suitable for all living areas
- Loud 85 dB alarm alert
- 10-Year Limited Warranty
What customers say
Customers overwhelmingly praise the Kidde NightHawk for its reliability and essential life safety function. The clear digital display showing real time carbon monoxide levels offers significant peace of mind beyond basic alarms. Installation is simple due to the plug in design, and the battery backup ensures protection during power loss. While the necessary end of life warning chirp can be annoying when the unit nears expiration, the overall consensus views this alarm as a highly effective and trusted safety investment. Its loud 85 decibel volume is appropriate for emergencies, making this a dependable, nonnegotiable home safety item.
Know before you buy
No, this unit is battery-operated using 3AA batteries. This makes it easy to install anywhere in your home without needing an electrician or access to an outlet.
The digital display provides real-time monitoring of carbon monoxide levels in parts per million (ppm). It remains blank during normal conditions to conserve battery life, but will light up and show readings if CO is detected.
Yes, this model features a versatile design that allows for either wall mounting or tabletop placement. This flexibility is ideal if you want to move the unit between rooms or prefer not to drill holes in your walls.
The alarm emits a loud 85-decibel alert, which is the standard volume for residential smoke and CO detectors. This level is designed to be loud enough to wake you or alert you from other rooms in the house.
No, this is a standalone unit. It does not feature interconnectivity, meaning it will only sound an alert for the specific device detecting the CO levels.
This unit comes with a 10-year limited warranty, which covers the expected operational life of the sensor. You should plan to replace the entire unit once it reaches the end of its 10-year service life.
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$42