Best CO Only carbon monoxide detector
Top 69 recommended products for "CO Only carbon monoxide detector"
69 Products
Updated Mar 23, 2026
Signal-led recommendations
Evidence Snapshot
Products Compared
69
Search Signals
45
Brands Represented
27
Latest Refresh
Recently updated
Signals and brand coverage reflect the active products shown on this page.
Quick Picks
Best OverallTop 1
Kidde Carbon Monoxide Detector, Plug In Wall with 9-Volt Battery Backup, Digital LED Display
Best overall mix of demand support, score strength, and confidence in this set.
Best ValueTop 2
Kidde Hardwired Carbon Monoxide Detector with 9-Volt Battery Backup, Digital LED Display 5.75 diameter x 1.8 depth
Standout option when price coverage is too limited for a value call.
Premium PickTop 3
Kidde Hardwired Carbon Monoxide Detector with 9-Volt Battery Backup, 3 LED Indicators
Highest-scoring alternative when price data is unavailable.
How To Read These Picks
These labels are meant to help you decide faster, not send you into methodology mode.
Demand
Shows how much search-demand support a product has inside this comparison set.
Expert Score
Our first-party ranking score for this set. It is not Amazon star ratings.
Confidence
Signals how complete and well-supported the listing data is before we recommend it.
Relative Price
We show whether an item is lower-priced, mid-range, or higher-priced in this set. Exact prices stay hidden.
Compare Top Products
Quick side-by-side comparison first, then detailed specifications in the same module.
| Product | |||||
|---|---|---|---|---|---|
| Expert Score | 99% within this set | 97% within this set | 97% within this set | 94% within this set | 94% within this set |
| Demand | 7% | 51% | 51% | 51% | 51% |
| Why It Stands Out | Best Overall Top Expert Score | ||||
Detailed Specifications Exact prices are hidden. Specs below focus on comparable product details. | |||||
| Brand | Kidde | Kidde | Kidde | First Alert | First Alert |
| Manufacturer | Kidde | Kidde Safety | Kidde | First Alert | BRK Brands |
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Intent: Product Attribute
About CO Only carbon monoxide detector
👤 Who it's for
🔍 Key differences
💡 Buying tips
Why CO Only carbon monoxide detector?
Compared with the parent topic, this branch narrows the category to one clearer shopping route instead of broad carbon-monoxide-detector browsing. Move back to carbon monoxide detector when you still need to compare power setup, alert style, combo format, and room fit side by side before choosing.
Market Overview
A comprehensive comparison of the 69 best CO Only carbon monoxide detector products. Top brands include Kidde, First Alert and X-Sense. Based on our analysis, the highly-rated option is Kidde Carbon Monoxide Detector, Plug In Wall with 9-Volt Bat.... These rankings are based on real-world performance, user reviews, and value for money.
As an Amazon Associate, we earn from qualifying purchases. Product prices and availability are subject to change. ExpertBeacon Score, Expert Score, Value, and Confidence are proprietary ranking signals and are not retailer star ratings or review counts. Full disclosure
Top 1
Kidde Carbon Monoxide Detector, Plug In Wall with 9-Volt Battery Backup, Digital LED Display
Kidde
0784908007605
6.0625 x 3.75 x 1.75 Inches
3 Pounds
10.0
Confidence Moderate
First-party ranking signal, not a retailer star rating.Demand Top 93%Confidence Moderate
Demand
7%
Expert Score★
99%
Related:
carbon monoxide detector
Top 2
Kidde Hardwired Carbon Monoxide Detector with 9-Volt Battery Backup, Digital LED Display 5.75 diameter x 1.8 depth
Kidde
0047871001217
2 x 6 x 6 inches
0.93 Pounds
9.9
Confidence Moderate
First-party ranking signal, not a retailer star rating.Demand Top 49%Confidence Moderate
Demand
51%
Expert Score
97%
Top 3
Kidde Hardwired Carbon Monoxide Detector with 9-Volt Battery Backup, 3 LED Indicators
Kidde
0047871001200
5.75 x 5.75 x 1.8 inches
0.8 Pounds
9.9
Confidence Moderate
First-party ranking signal, not a retailer star rating.Demand Top 49%Confidence Moderate
Demand
51%
Expert Score
97%
Top 4
First Alert Carbon Monoxide Detector, Plug-In Alarm with Test & Silence Button, CO600, White, 1-Pack
First Alert
0029054000705
8.5 x 6.75 x 2.8 inches
0.3 Pounds
9.8
Confidence Moderate
First-party ranking signal, not a retailer star rating.Demand Top 49%Confidence Moderate
Demand
51%
Expert Score
94%
Top 5
First Alert BRK Carbon Monoxide Detector, Hardwired Alarm with Battery Backup, CO5120BN, White
First Alert
0029054856173
2.09 x 5.53 x 5.72 inches
0.55 Pounds
9.8
Confidence Moderate
First-party ranking signal, not a retailer star rating.Demand Top 49%Confidence Moderate
Demand
51%
Expert Score
94%
Top 6
ExpertBeacon Pick
First Alert CO400 Carbon Monoxide (CO) Detector, Battery Operated Alarm, 1-Pack
First Alert
0029054000699
5 x 1 x 3 inches
0.45 pounds
9.7
Confidence High
First-party ranking signal, not a retailer star rating.Demand Top 4%Confidence High
Demand
96%
Expert Score
46%
Top 7
First Alert CO615 Dual-Power Plug-In Carbon Monoxide Detector with Battery Backup and Digital Display, White
First Alert
0029054000712
3.4 x 1.7 x 5 inches
0.75 pounds
9.7
Confidence Moderate
First-party ranking signal, not a retailer star rating.Demand Top 49%Confidence Moderate
Demand
51%
Expert Score
46%
Top 8
FIRST ALERT Carbon Monoxide Detector, No Outlet Required, Battery Operated, CO400, White, 2 Count (Pack of 1)
First Alert
0029054003720
9 x 6 x 4 inches
0.8 Pounds
9.7
Confidence Moderate
First-party ranking signal, not a retailer star rating.Demand Top 49%Confidence Moderate
Demand
51%
Expert Score
46%
Top 9
FIRST ALERT Carbon Monoxide Alarm | BRK CO250 Battery Operated Carbon Monoxide Detector With 9-Volt Battery & Two Silence Features
First Alert
0029054003928
4.25 x 4.25 x 1.6 inches
0.39 Pounds
9.7
Confidence Moderate
First-party ranking signal, not a retailer star rating.Demand Top 49%Confidence Moderate
Demand
51%
Expert Score
46%
Top 10
Kidde Carbon Monoxide Detector, AA Battery Powered CO Alarm with LEDs, Test-Reset Button, Low Battery Indicator, Portable
Kidde
0716080045267
4.5 x 1.5 x 2.75 inches
0.58 pounds
9.7
Confidence Moderate
First-party ranking signal, not a retailer star rating.Demand Top 92%Confidence Moderate
Demand
8%
Expert Score
46%
Top 11
ExpertBeacon Pick
Kidde Carbon Monoxide Detector, Battery Powered CO Alarm with LEDs, Test-Reset Button, Low Battery Indicator, Portable
Kidde
0047871088720
3 x 7 x 11 inches
0.5 Pounds
9.7
Confidence High
First-party ranking signal, not a retailer star rating.Demand Top 1%Confidence High
Demand★
99%
Expert Score
46%
Top 12
First Alert BRK CO511 Carbon Monoxide (CO) Detector Wireless Interconnected with Voice and Location
First Alert
0029054002914
5.13 x 2.38 x 5.13 inches
0.65 Pounds
9.7
Confidence Moderate
First-party ranking signal, not a retailer star rating.Demand Top 49%Confidence Moderate
Demand
51%
Expert Score
46%
Top 13
ExpertBeacon Pick
Kidde Carbon Monoxide Detector, Plug In Wall with AA Battery Backup, Test-Hush Button
Kidde
0047871257591
2.75 x 1.5 x 4.5 inches
0.03968320716 pounds
9.7
Confidence High
First-party ranking signal, not a retailer star rating.Demand Top 2%Confidence High
Demand
98%
Expert Score
46%
Related:
carbon monoxide detector
Top 14
First Alert CO710 Carbon Monoxide Detector with 10-Year Battery and Digital Temperature Display , White
First Alert
0029054014269
0.94 x 4.75 x 2.63 inches
0.4 Pounds
9.7
Confidence Moderate
First-party ranking signal, not a retailer star rating.Demand Top 49%Confidence Moderate
Demand
51%
Expert Score
46%
Top 15
FIRST ALERT Plug-In Carbon Monoxide Detector, 3 Count (Pack of 1), CO600 , White, 6.75 x 6.9 x 9 inches
First Alert
6.75 x 6.9 x 9 inches
0.76 pounds
9.7
Confidence Moderate
First-party ranking signal, not a retailer star rating.Demand Top 49%Confidence Moderate
Demand
51%
Expert Score
46%
Top 16
Kidde Carbon Monoxide Detector with 10-Year Battery, Digital Display, 3 LEDs, Replacement Indicator, Peak Level Memory
Kidde
0047871297542
4.5 x 1.5 x 2.75 inches
0.5 Pounds
9.7
Confidence Moderate
First-party ranking signal, not a retailer star rating.Demand Top 49%Confidence Moderate
Demand
51%
Expert Score
46%
Top 17
Kidde Carbon Monoxide Detector, Plug In Wall with 9-Volt Battery Backup, Digital LED Display - 2 Pack
Kidde
0047871298006
1.75 x 3.75 x 6.06 inches
1 pounds
9.7
Confidence Moderate
First-party ranking signal, not a retailer star rating.Demand Top 49%Confidence Moderate
Demand
51%
Expert Score
46%
Top 18
X-Sense Carbon Monoxide Detector Alarm with Digital LCD Display, Replaceable Battery CO Alarm Detector with Peak Value Memory, XC01-R
X-Sense
0850042393628
0.6 x 5.3 x 2.5 Inches
0.2 Pounds
9.7
Confidence Moderate
First-party ranking signal, not a retailer star rating.Demand Top 99%Confidence Moderate
Demand
1%
Expert Score
46%
Top 19
X-Sense Wireless Interconnected Carbon Monoxide Detector, Replaceable Battery Powered CO Alarm with Digital Display and Peak Value Memory, XC01-WR, Pack of 2
X-Sense
0850053675287
0.6 x 2.5 x 5.3 inches
9.7
Confidence Moderate
First-party ranking signal, not a retailer star rating.Demand Top 49%Confidence Moderate
Demand
51%
Expert Score
46%
Top 20
Carbon Monoxide Detector,CO Monitor Alarm Detector Battery Powered,CO Detector with LCD Digital Display and Sound Warning for Home,Office,School,Basement,Garage,Complies with UL 2034 Standards
Sylzy
1 x 0.6 x 0.6 inches
9.7
Confidence Moderate
First-party ranking signal, not a retailer star rating.Demand Top 49%Confidence Moderate
Demand
51%
Expert Score
46%
Top 21
3 Packs Carbon Monoxide Detectors - Hembisen Carbon Monoxide Detector Plug in Type CO Alarm Monitor with Digital Display, Accurate & Easy to Read, for Home/Kitchen/Hotel/Bedroom (White)
Hembisen
0632368770563
1.5 x 2.76 x 4.33 inches
0.28125 Pounds
9.7
Confidence Moderate
First-party ranking signal, not a retailer star rating.Demand Top 49%Confidence Moderate
Demand
51%
Expert Score
46%
Top 22
Plug-in Carbon Monoxide Detectors,Koabbit CO Level Monitoring Alarm with Light & Digital Display for Home/Kitchen/Bedroom,Accurate & Easy to Install(2 Pack)
KOABBIT
0.05 pounds
9.7
Confidence Moderate
First-party ranking signal, not a retailer star rating.Demand Top 49%Confidence Moderate
Demand
51%
Expert Score
46%
Top 23
3 Packs Carbon Monoxide Detectors - Hembisen CO Alarm Detector Monitor Battery Operated with Digital Display for House Kitchen Restaurant Hotel Office
Hembisen
0.37 x 2.74 x 2.74 inches
0.55 pounds
9.7
Confidence Moderate
First-party ranking signal, not a retailer star rating.Demand Top 49%Confidence Moderate
Demand
51%
Expert Score
46%
Top 24
X-Sense Smart Carbon Monoxide Detector, Wi-Fi CO Detector, Real-Time Push Notifications via X-Sense Home Security App, Replaceable Battery, Optional 24/7 Professional Monitoring Service, XC04-WX
X-Sense
0850042393642
5.3 x 0.6 x 2.5 inches
0.2866009406 Pounds
9.7
Confidence Moderate
First-party ranking signal, not a retailer star rating.Demand Top 49%Confidence Moderate
Demand
51%
Expert Score
46%
Top 25
Siterwell Carbon Monoxide Detectors, 10 Year Product Life CO Detector with LCD Digital Display and Sound Warning, ETL Listed, Carbon Monoxide Detectors Battery Operated for Home School Office, 1-Pack
SITERWELL
0768481512015
1.4 x 4.7 x 3.14 inches
0.441 pounds
9.7
Confidence Moderate
First-party ranking signal, not a retailer star rating.Demand Top 49%Confidence Moderate
Demand
51%
Expert Score
46%
Top 26
Jemay Carbon Monoxide Detector, 10-Year Lifespan CO Alarm with Battery Powered–LCD Display, LED Indicator & 85dB Loud Alert | Wall-Mounted/Portable CO Detector for Home, Bedroom, Travel Safety
Jemay
9.7
Confidence Moderate
First-party ranking signal, not a retailer star rating.Demand Top 49%Confidence Moderate
Demand
51%
Expert Score
46%
Top 27
Siterwell Wireless Interconnected Carbon Monoxide Detectors, Travel Carbon Monoxide Detector with LCD Digital Display and Sound Warning, ETL Listed, Portable Carbon Monoxide Detector for Home, 1-Pack
SITERWELL
0768481517058
0.441 Pounds
9.7
Confidence Moderate
First-party ranking signal, not a retailer star rating.Demand Top 49%Confidence Moderate
Demand
51%
Expert Score
46%
Top 28
Carbon Monoxide Detectors, CO Detector Battery Powered, Carbon Monoxide Alarm with Sensitive CO Sensor,CO Alarm with Digital Display & Sound Warning for Home，Kitchen，Warehouse
JYSONGHU
3.94 x 3.94 x 1.57 inches
0.2 Pounds
9.7
Confidence Moderate
First-party ranking signal, not a retailer star rating.Demand Top 98%Confidence Moderate
Demand
2%
Expert Score
46%
Top 29
COOKSS Carbon Monoxide Detector 2 Pack,CO Gas Monitor Alarm with LCD Digital Display and Sound Warning，Battery Powered High Accuracy CO Alarm for Home,Office,Warehouse
COOKSS
0762704553618
2.36 x 2.36 x 0.98 Inches
0.1763698096 pounds
9.7
Confidence Moderate
First-party ranking signal, not a retailer star rating.Demand Top 49%Confidence Moderate
Demand
51%
Expert Score
46%
Top 30
Carbon Monoxide Detector Alarm with Digital LCD Display, CO Detector Alarm with Replaceable Battery,Test-Reset Button, Low Battery Indicator, Portable,complies with UL2034(Batteries NOT Included)
USBNOVEL
0.08 Pounds
9.7
Confidence Moderate
First-party ranking signal, not a retailer star rating.Demand Top 49%Confidence Moderate
Demand
51%
Expert Score
46%
Top 31
Pildegro 3-in-1 Portable Carbon Monoxide Detector, Professional Rechargeable Real-Time Travel CO Monitor 140HR Standby, Premium Reliable CO Detector with Loud Alarm for Air Safety (Grey/Courage)
Pildegro
2.99 x 2.76 x 1.18 inches
0.22 Pounds
9.7
Confidence Moderate
First-party ranking signal, not a retailer star rating.Demand Top 49%Confidence Moderate
Demand
51%
Expert Score
46%
Top 32
3-in-1 Carbon Monoxide Detector, Carbon Monoxide Detector Plug in Wall with Temperature & Humidity Display, CO Alarm Monitor with Color LCD Display, Accurate & Easy to Install
Generic
0658360150882
4.69 x 2.05 x 1.93 inches
0.2 Pounds
9.7
Confidence Moderate
First-party ranking signal, not a retailer star rating.Demand Top 49%Confidence Moderate
Demand
51%
Expert Score
46%
Top 33
HEIMAN Smart Carbon Monoxide Detector, Wi-Fi Nano CO Alarm, ETL Listed Real-Time Push Notifications Battery Powered, Test-Reset Button, 2034 Standards, 10-Year Figaro Sensor, Portable for Trave
HEIMAN
27.55905509 x 27.55905509 x 14.566929119 Inches
0.23 pounds
9.7
Confidence Moderate
First-party ranking signal, not a retailer star rating.Demand Top 49%Confidence Moderate
Demand
51%
Expert Score
46%
Top 34
Heiman Carbon Monoxide Detector, Nano-Sized Portable CO Alarm Battery Powered, UL2034 4th Certified, 10-Year Battery Figaro Sensor, Test Button, Small Firm Alarm for Home Travel Vehicle RV
HEIMAN
2.75 x 1.45 x 2.75 inches
0.22 Pounds
9.7
Confidence Moderate
First-party ranking signal, not a retailer star rating.Demand Top 49%Confidence Moderate
Demand
51%
Expert Score
46%
Top 35
3 Packs Carbon Monoxide Detectors, Travel Carbon Monoxide Detector Battery，Replaceable Battery Operated CO Detector Alarm with Digital Display for Warehouse, Kitchen, Restaurant,Hotel, Garage
Uingarm
0795602187364
9.7
Confidence Moderate
First-party ranking signal, not a retailer star rating.Demand Top 49%Confidence Moderate
Demand
51%
Expert Score
46%
Top 36
X-Sense Smart Carbon Monoxide Detector XC0C-iR, Silence via App, CO Alarm with LCD Digital Display, Carbon Monoxide Alarm with Replaceable Battery, 1-Pack
X-Sense
0810194782282
1.3 x 5.6 x 3 inches
9.7
Confidence Moderate
First-party ranking signal, not a retailer star rating.Demand Top 49%Confidence Moderate
Demand
51%
Expert Score
46%
Top 37
First Alert SMICO100-AC Interconnect Hardwire Combination Smoke & Carbon Monoxide Alarm with Battery Backup - 3 Pack
First Alert
0029054022769
21.5 x 7.5 x 3.5 inches
1.68 Pounds
9.7
Confidence Moderate
First-party ranking signal, not a retailer star rating.Demand Top 49%Confidence Moderate
Demand
51%
Expert Score
46%
Top 38
ExpertBeacon Pick
Carbon Monoxide Detectors, CO Detector Battery Powered, Carbon Monoxide Alarm with Sensitive CO Sensor, LCD Display and Sound Warning for Home, Bedroom, Kitchen
SHYEEH
9.7
Confidence High
First-party ranking signal, not a retailer star rating.Demand Top 7%Confidence High
Demand
93%
Expert Score
46%
Top 39
Carbon Monoxide Detectors Plug in Wall, Portable Carbon Monoxide Detector with Alarm,3 in 1 Travel CO Detector Humidity Temperature Meter, Mini Co Gas Monitor Home Hotel Trip Camp RV
GRAY RHINO
3 x 1 x 2 inches
9.7
Confidence Moderate
First-party ranking signal, not a retailer star rating.Demand Top 49%Confidence Moderate
Demand
51%
Expert Score
46%
Top 40
Carbon Monoxide Detector Plug in Wall，CO Gas Monitor Alarm Detector with Digital Display Sound & Light Warning for Home/Workplace/Travel
AOTIQUAL
1 x 1 x 1 inches
0.22 pounds
9.7
Confidence Moderate
First-party ranking signal, not a retailer star rating.Demand Top 49%Confidence Moderate
Demand
51%
Expert Score
46%
Top 41
DS-100 Portable Carbon Monoxide Detector for Travel, 140H Standby, CO Detector with Magnetic Back, 3-in-1 CO Monitor with Audible & Visual Alarm for Camping, Hotel, Car & RV
GasDoc
1.181102361 x 2.362204722 x 2.9921259812 inches
0.235233233554 pounds
9.7
Confidence Moderate
First-party ranking signal, not a retailer star rating.Demand Top 49%Confidence Moderate
Demand
51%
Expert Score
46%
Top 42
Carbon Monoxide Detectors with 10-Year Battery, Digital LCD Display, LED Flashing Signal Lights Portable CO Monitor Alarm for Travel, RV, Home, and Depot (1 Pack)
Runidur
3.15 x 1.25 x 3.2 Inches
0.2 pounds
9.7
Confidence Moderate
First-party ranking signal, not a retailer star rating.Demand Top 49%Confidence Moderate
Demand
51%
Expert Score
46%
Top 43
Carbon Monoxide Detectors,CO Detectors Battery Powered,2 Pack Carbon Monoxide CO Alarms with Light&Digital Display for Home,Bedroom,Kitchen,Office
USBNOVEL
4 x 4 x 0.3 inches
0.1 Pounds
9.7
Confidence Moderate
First-party ranking signal, not a retailer star rating.Demand Top 49%Confidence Moderate
Demand
51%
Expert Score
46%
Top 44
2 Pack Combination Gas & Carbon Monoxide Detectors - Plug in CO Alarm & Natural Gas Detector with Digital Display, CO Detector & Combustible Gas Detector for Home, Easy to Read
KOABBIT
0.01 x 0.01 x 0.01 inches
0.01 pounds
9.7
Confidence Moderate
First-party ranking signal, not a retailer star rating.Demand Top 49%Confidence Moderate
Demand
51%
Expert Score
46%
Top 45
2 Packs Carbon Monoxide Detectors,CO Alarm Detector Monitor Battery Operated with PPM Value Display,Carbon Monoxide Alarm with Sound &Light Warning,Accurate & Easy to Read,for Home Kitchen Office
Sylzy
4.7 x 2.7 x 0.98 inches
0.42108292042 pounds
9.7
Confidence Moderate
First-party ranking signal, not a retailer star rating.Demand Top 49%Confidence Moderate
Demand
51%
Expert Score
46%
Top 46
X-Sense Carbon Monoxide Detector, Replaceable Battery Powered CO Alarm with Digital Display, Portable Carbon Monoxide Detector for Travel, XC0C-SR, 1-Pack
X-Sense
0850053675959
1.3 x 5.6 x 3 inches
0.5070632026 pounds
9.7
Confidence Moderate
First-party ranking signal, not a retailer star rating.Demand Top 49%Confidence Moderate
Demand
51%
Expert Score
46%
Top 47
Pildegro 3-in-1 Carbon Monoxide Detector Plug in, Professional 2.1" LED Plug-and-Play Real-Time CO Monitor with Temp & RH, Premium Portable Travel CO Alarm with 85dB Loud Alarm (White/Classic)
Pildegro
1.3 x 2.01 x 3.35 inches
0.13 Pounds
9.7
Confidence Moderate
First-party ranking signal, not a retailer star rating.Demand Top 49%Confidence Moderate
Demand
51%
Expert Score
46%
Top 48
2 Packs Gas & Carbon Monoxide Detectors - Plug in Carbon Monoxide Detector & Propane, Natural Gas Detector, CO Monitor Alarm & Explosive Gas Detector Alarm for Home,RV
KOABBIT
0.01 x 0.01 x 0.01 inches
0.03 pounds
9.7
Confidence Moderate
First-party ranking signal, not a retailer star rating.Demand Top 49%Confidence Moderate
Demand
51%
Expert Score
46%
Top 49
Combination Gas & Carbon Monoxide Detectors Plug in,Hembisen 2-in-1 Natural Gas Detector & Carbon Monoxide Alarm, CO Detector Alarm & Propane, Explosive Gas Detector for Home,RV,Easy to Install
Hembisen
0.01 x 0.03 x 0.03 inches
0.05 Pounds
9.7
Confidence Moderate
First-party ranking signal, not a retailer star rating.Demand Top 49%Confidence Moderate
Demand
51%
Expert Score
46%
Top 50
3 Packs Plug in Explosive-Gas & Carbon-Monoxide-Detectors,Hembisen 4-in-1 Carbon Monoxide Alarm,Natural Gas Leak Detector with °F & Humidity 4 Sensors for Home,RV,Apartment
Hembisen
0741050444382
0.03 x 0.05 x 0.04 inches
0.1 Pounds
9.7
Confidence Moderate
First-party ranking signal, not a retailer star rating.Demand Top 49%Confidence Moderate
Demand
51%
Expert Score
46%
Top 51
2 Packs Combination Natural-Gas and Carbon-Monoxide-Detector,Koabbit 4-in-1 CO/LPG/LNG Explosive Gas Detector Alarm with Temperature(°F) & Humidity for Home,RV,Hotel,Apartment
KOABBIT
0.03 x 0.05 x 0.04 inches
0.1 Pounds
9.7
Confidence Moderate
First-party ranking signal, not a retailer star rating.Demand Top 95%Confidence Moderate
Demand
5%
Expert Score
46%
Top 52
Carbon Monoxide Detectors Plug in, Phsmont Portable CO Detectors with Digital LED Display for Home and Travel, Test Button
Phsmont
1.8 x 2.7 x 3.9 inches
0.2 Pounds
9.7
Confidence Moderate
First-party ranking signal, not a retailer star rating.Demand Top 49%Confidence Moderate
Demand
51%
Expert Score
46%
Top 53
GasDoc DS-399 Portable Carbon Monoxide Detector, 168H Standby, Rechargeable 3-in-1 CO Detector with Audible & Visual Alerts for Travel & Camping, CO Meter for Home, Car & Tent
GasDoc
4.1338582635 x 0.8267716527 x 1.968503935 inches
0.169315017216 pounds
9.7
Confidence Moderate
First-party ranking signal, not a retailer star rating.Demand Top 49%Confidence Moderate
Demand
51%
Expert Score
46%
Top 54
SITERWELL Plug in Carbon Monoxide Detector 10 Year Battery, CO Alarm Detector with Electrochemical Sensor and Sound Warning, AC Powered Portable Carbon Monoxide Detector for Home Office Travel,1-Pack
SITERWELL
0725576460569
4.72 x 2.76 x 1.65 inches
0.4 Pounds
9.7
Confidence Moderate
First-party ranking signal, not a retailer star rating.Demand Top 49%Confidence Moderate
Demand
51%
Expert Score
46%
Top 55
Jemay Carbon Monoxide Detector Plug in,10 Year Battery Power Carbon Monoxide Alarm with Test-Button & Breathing Light, Portable CO Detectors for Travel Home Office RV Hotel,1 Pack
Jemay
4.7 x 2.7 x 1.6 inches
0.4 Pounds
9.7
Confidence Moderate
First-party ranking signal, not a retailer star rating.Demand Top 49%Confidence Moderate
Demand
51%
Expert Score
46%
Top 56
X-Sense Wi-Fi Plug-in Carbon Monoxide Detector with AAA Battery Backup, No-Cost App Notifications, XC0C-iA, 1-Pack
X-Sense
0810194782305
1.3 x 6 x 3.1 inches
0.42 pounds
9.7
Confidence Moderate
First-party ranking signal, not a retailer star rating.Demand Top 49%Confidence Moderate
Demand
51%
Expert Score
46%
Top 57
X-Sense Plug-in Carbon Monoxide Detector, with AAA Battery Backup, XC0C-SA, 1-Pack
X-Sense
0850066548974
1.3 x 5.6 x 3 Inches
0.41 Pounds
9.7
Confidence Moderate
First-party ranking signal, not a retailer star rating.Demand Top 49%Confidence Moderate
Demand
51%
Expert Score
46%
Top 58
5-in-1 Gas & CO Detector with Digital Display | Plug-in + 9V Battery Backup Carbon Monoxide Detectors| Adjustable Brightness & Alarm Volume | Home, RV, Apartment (1-Pack)
ANTERCITE
4.92 x 2.26 x 2.36 inches
0.24 pounds
9.7
Confidence Moderate
First-party ranking signal, not a retailer star rating.Demand Top 49%Confidence Moderate
Demand
51%
Expert Score
46%
Top 59
ExpertBeacon Pick
Kidde Carbon Monoxide Detector, Battery Powered CO Alarm with LEDs, Test-Reset Button, Low Battery Indicator, Portable
Kidde
0047871335091
1.65 x 4.72 x 2.83 Inches
0.23 pounds
9.7
Confidence High
First-party ranking signal, not a retailer star rating.Demand Top 5%Confidence High
Demand
95%
Expert Score
46%
Top 60
Kidde Carbon Monoxide Detector, Plug in Wall with AA Battery Backup, Test-Hush Button
Kidde
0047871335107
2.32 x 2.83 x 4.72 inches
0.6834330122 pounds
9.7
Confidence Moderate
First-party ranking signal, not a retailer star rating.Demand Top 91%Confidence Moderate
Demand
9%
Expert Score
46%
Top 61
Detectors
IQYEF
0.98 x 2 x 3.4 inches
9.7
Confidence Moderate
First-party ranking signal, not a retailer star rating.Demand Top 49%Confidence Moderate
Demand
51%
Expert Score
46%
Top 62
Carbon Monoxide Detectors,Plug in CO and Natural Gas Detector, Combination Gas & Carbon Monoxide Detectors for Travel with Temperature Humidity Display, 4 in 1 CO & Gas Detector for Home/Travel
Nsrrye
0753848841099
2 x 2 x 4 Inches
0.16 Pounds
9.7
Confidence Moderate
First-party ranking signal, not a retailer star rating.Demand Top 49%Confidence Moderate
Demand
51%
Expert Score
46%
Top 63
Carbon Monoxide Detector,Portable CO Alarm CO Gas Monitor Alarm with LCD Digital Display Sound Light Warning,Battery Powered High Accuracy CO Alarm Detectors for Travel Home Office Kitchen Car Hotel
HuiDeonne
1.14 x 2.56 x 2.56 inches
0.15 Pounds
9.7
Confidence Moderate
First-party ranking signal, not a retailer star rating.Demand Top 49%Confidence Moderate
Demand
51%
Expert Score
46%
Top 64
gutong 4 in 1 Carbon Monoxide Detectors Plug in, CO Detector & Natural Gas Detector with Battery Backup, HD Digital Display Monitors CO, Combustible Gas, Temp, Humidity - Home Safety for House, RV
gutong
1.8 x 3.4 x 3.4 inches
9.7
Confidence Moderate
First-party ranking signal, not a retailer star rating.Demand Top 49%Confidence Moderate
Demand
51%
Expert Score
46%
Top 65
3 in 1 Carbon Monoxide Detectors, Natural Gas Detector & CO Detector with Battery Backup, HD Digital Display Monitors CO, Combustible Gas, Temperature (White)
gutong
1.8 x 3.4 x 3.4 Inches
9.7
Confidence Moderate
First-party ranking signal, not a retailer star rating.Demand Top 96%Confidence Moderate
Demand
4%
Expert Score
46%
Related:
carbon monoxide detector
Top 66
4 in 1 Carbon Monoxide Detectors Plug in, Natural Gas Detector & Carbon Monoxide Detector & Battery Backup, HD Digital Display Monitors CO, Gas, Temp, Humidity - Home Safety for House, RV, Apartment
gutong
1 x 3.4 x 3.4 inches
9.7
Confidence Moderate
First-party ranking signal, not a retailer star rating.Demand Top 49%Confidence Moderate
Demand
51%
Expert Score
46%
Top 67
ExpertBeacon Pick
Portable Carbon Monoxide Detector for Travel – Nexus Sensus 3-in-1 CO Detector with Temp & Humidity Monitor, UL-Compliant USB-C Rechargeable Alarm for RV, Hotel, Camping, Home(1, Orange)
NEXUS SENSUS
0716597215450
3.5 x 1.2 x 4 inches
0.15 Pounds
9.7
Confidence High
First-party ranking signal, not a retailer star rating.Demand Top 8%Confidence High
Demand
92%
Expert Score
46%
Related:
carbon monoxide detector
Top 68
Carbon Monoxide Detector,Carbon Monoxide Alarm with LCD Digital Display Sound Light Warning,Battery Powered High Accuracy Co Gas Monitor Alarm Detectors for Travel Home Office Kitchen RV Hotel
HuiDeonne
3.94 x 3.94 x 1.38 Inches
0.22 Pounds
9.7
Confidence Moderate
First-party ranking signal, not a retailer star rating.Demand Top 49%Confidence Moderate
Demand
51%
Expert Score
46%
Top 69
5-in-1 Carbon Monoxide Detectors,Combustible Gas Detector,Plug-in & Built-in Backup Battery,Monitoring CO,Natural Gas,Temperature and Humidity,Clear LCD Screen Sound Light Dual Alarm Detector
HuiDeonne
1.5 x 2.36 x 4.3 inches
0.22 Pounds
9.7
Confidence Moderate
First-party ranking signal, not a retailer star rating.Demand Top 49%Confidence Moderate
Demand
51%
Expert Score
46%
Head-to-Head Comparison
This refinement matters most when you already know the feature, setup, or placement pattern that should decide the purchase. It gives a faster route than the parent page and still keeps a nearby sibling path open through Smoke + CO Combo Carbon Monoxide Detectors if you need a second pass before choosing.
Alarm Format Comparison
How CO Only carbon monoxide detector compares to other options
By Alarm Format
3 categories · 84 productsAlso explore by
Power Type
Display Type
Alert Linking
Best For: Best For Shopper Priority
Product Breakdown
Power Type
Alarm Format
Display Type
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Product Attributes
- CO Only carbon monoxide detector ★(69)
- Battery Powered carbon monoxide detector ★(55)
- Digital Display carbon monoxide detector ★(53)
- Plug-In carbon monoxide detector(32)
- Battery Backup carbon monoxide detector(19)
- Smart / App Connected carbon monoxide detector(14)
- Basic Indicator carbon monoxide detector(11)
- Gas + CO Combo carbon monoxide detector(11)
Best For (Scenarios)
- Best carbon monoxide detector for Clear Display(35)
- Best carbon monoxide detector for Easy Install(30)
- Best carbon monoxide detector for Bedrooms / Sleeping Areas(21)
- Best carbon monoxide detector for Backup Power(19)
- Best carbon monoxide detector for Smart Alerts(14)
- Best carbon monoxide detector for Apartments / Rentals(10)
- Best carbon monoxide detector for Basement / Utility Areas(7)
Try this with Scenarios
Best For Shopper Priority
Coverage Snapshot
- Products compared69
- Demand bandHigh
- Signal confidenceModerate
- Top search“carbon monoxide detector”
Related
- Battery Powered carbon monoxide detector
- Digital Display carbon monoxide detector
- Plug-In carbon monoxide detector
- Best carbon monoxide detector for Easy Install
- Best carbon monoxide detector for Clear Display
- Best carbon monoxide detector for Smart Alerts
- Smart / App Connected carbon monoxide detector
- Battery Backup carbon monoxide detector
- Best carbon monoxide detector for Backup Power
- Best carbon monoxide detector for Bedrooms / Sleeping Areas
Popular Brands
- Kidde10 listings83% market share
- First Alert10 listings12% market share
- SHYEEH1 listing4% market share
- X-Sense7 listings0% market share
- JYSONGHU1 listing0% market share
- KOABBIT4 listings0% market share
- gutong3 listings0% market share
- Sylzy2 listings0% market share
- Hembisen4 listings0% market share
- SITERWELL3 listings0% market share
Aggregated market data sourced from amzdata.io
How to Choose the Best CO Only carbon monoxide detector
This branch is the right shortcut when you want a dedicated carbon monoxide alarm without a combo smoke or gas sensor. It is narrower than carbon monoxide detector because it keeps the comparison centered on one practical buying decision instead of forcing you to scan the whole carbon-monoxide-detector category. If you want the nearest alternate angle, compare it with Smoke + CO Combo Carbon Monoxide Detectors.
Match Confidence
High ≥0.8 (69)Medium 0.5-0.8 (0)Low <0.5 (0)
Cross-Dimension Insights
Products in CO Only carbon monoxide detector also appear in:
Frequently Asked Questions
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