Kidde Carbon Monoxide Detector
Propane, Natural, Methane, & Explosive Gas Alarm, Plug-In Wall with 9-Volt Battery Backup, Digital LED Display
Price as of 2026-06-05. Check Amazon for the current price.
Quick Decision
Price Intelligence
Currently $69 — the 90-day average is $57.50.
All-time low: $41.70 on Thu Nov 21 (from 182 price checks).
- Budget:$24–$39
- Mid-range:$39–$78← You are here
- Premium:$78+
Is This Right For You?
- •Buyers who prioritize quality over price in Carbon Monoxide Detectors
- •Risk-averse buyers — 16,818+ reviews give a highly reliable picture
- •Kidde loyalists — the brand spans 155 products in our database
- •You're on a tight budget — $5 above the category average of $64
- •Kidde Carbon Monoxide Detector offers a better rating (4.7/5) at a similar or lower price ($36)
- •Kidde Carbon Monoxide Detector — 60% cheaper at $28 (Score A+)
- •Kidde Carbon Monoxide Detector — higher rated at 4.7/5 ($36)
📊 Based on data analysis of 53 products in this category.
Mubboo Score: A-
How we calculate the Mubboo Score
Quality (45%): customer rating, normalized to a 10-point scale
Popularity (35%): review volume vs the category leader, log-scaled
Value (20%): price position vs other Carbon Monoxide Detectors
Computed from live Amazon rating, review count, and price across 53 Carbon Monoxide Detectors available to US consumers · last refreshed 2026-06-05.
How It Compares
This Product Kidde Carbon Monoxide Detector | Most Popular Kidde Carbon Monoxide Detector | Best Rated First Alert Carbon Monoxide Detector | Best Value Kidde Carbon Monoxide Detector | |
|---|---|---|---|---|
| Price | $69 | $36 | $29.98 | $27.94 |
| Rating | 4.6/5 | 4.7/5 | 4.7/5 | 4.7/5 |
| Reviews | 16,818 | 35,752 | 7,698 | 19,737 |
| Mubboo Score | A- | A | A | A+ |
Quick Specs
- Alarm
- Audible
- Color
- White
- Style
- Clamshell Packaging
- Unit Count
- 1.0 Count
- Item Weight
- 16 ounces
- Sensor Type
- Electrochemical
- Manufacturer
- Kidde
- Model Number
- KN-COEG-3
What People Say
Synthesized from 40 reviews · 100% verified purchases.
Choose a model with a digital display if you want to see real-time CO levels. Note that the low-battery chirp can be mistaken for a smoke detector, so test early; also remember these need replacement after 10 years.
- Plug-and-Play Installation
- Peace of Mind & Reliable Protection
- Battery Backup for Outages
- Loud Alarm for Safety
- Portable for Travel
- No Digital Display on Basic Units
- Low-Battery Chirp Resembles Smoke Detector
Expert Picks in Carbon Monoxide Detectors
- Kidde Smart Smoke + Carbon Monoxide Alarm — Best smart smoke alarm
- First Alert SC5 Hardwire Smart Smoke and CO Alarm — Works with Nest Protect units
- Kidde Ring Smart Smoke + Carbon Monoxide Alarm — Ring alarm users
Category recommendations from independent expert publications. Source links in References.
Related Video Reviews
- 📹 What Most Homeowners Don’t Know About Carbon Monoxide Detectors — The DIY HVAC Guy
- 📹 Best Carbon Monoxide Detectors in 2026 — wiredtech
- 📹 7 Best Carbon Monoxide Detector 2026! Tested & Tried — Everything Under Control
Key Features
- ✦Easy Installation - simply plug-in to a standard, 120V outlet in your home
- ✦9-volt battery backup provides protection during a power outage
- ✦Digital LED display shows the level of carbon monoxide the CO alarm is sensing or states "GAS" when explosive gas is present
- ✦85-decibel alarm announces when carbon monoxide or explosive gas is detected
- ✦Peak Level Memory records the last time carbon monoxide was detected or when the unit was last tested
Source: product listing on Amazon.
About Kidde
- 155 products in our database
- Average rating: 4.6/5 across all products
- Price range: $12.87 – $381.75
- Categories: Carbon Monoxide Detectors, Fire Extinguishers, Smoke Detectors
If not the Carbon Monoxide Detector, consider these
Featured in Our Reviews
Bottom Line
Kidde Carbon Monoxide Detector earns Mubboo Score A-. At $69 it's above the 90-day average of $58 — waiting for a dip may pay off. Rated 4.6/5 from 16,818+ reviews. Strong buy if: buyers who prioritize quality over price in carbon monoxide detectors, risk-averse buyers. Skip if: you're on a tight budget — Kidde Carbon Monoxide Detector (Score A, $36) may fit better.
Frequently Asked Questions
Is the Kidde Carbon Monoxide Detector worth buying in 2026?
It earns a Mubboo Score of A-, with a 4.6/5 rating from 16,818 reviews — better than 60% of Carbon Monoxide Detectors we track.
How much does the Kidde Carbon Monoxide Detector cost?
It is currently $69. The 90-day average is $57.50 and the all-time low we recorded is $41.70.
How does the Carbon Monoxide Detector compare to other Carbon Monoxide Detectors?
The category's most-reviewed alternative is the Kidde Carbon Monoxide Detector (4.7/5, 35,752 reviews, $36). The Carbon Monoxide Detector carries a Mubboo Score of A- vs A.
Sources & References
Products available through US retailers. Prices in USD. Sales tax varies by state and is not included.
Mubboo may earn a commission on purchases made through affiliate links. This does not affect our Mubboo Score, product rankings, or editorial judgments. Prices are accurate as of the last sync (2026-06-05) and may change.