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Mini Portable Co2 Detector Comparison - June 2025
| 1 Best Choice  9.8Exceptional | 2  9.5Excellent | 3  9.2Excellent | 4  9.1Excellent | 5 Best Value  9.0Excellent | 6  8.9Very Good |
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ModelLunarlipes Portable Carbon Monoxide Detectors for Travel, Mini 3-in-1 Carbon Monoxide Monitor with Magnetic Suction, RV CO Detector Alarm Temp/Humidity Sensor, Rechargeable CO Monitor 120HR Standby | Model INKBIRDPLUS Portable CO2 Detector, Mini Indoor CO2 Monitor, NDIR Sensor with Full Color LCD, for Home, Office, Travel (PTH-10C) | Model 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) | Model HAKINAKU [3-in-1] Carbon Monoxide Detector Portable Mini Air Quality Monitor with Lanyard Alarm CO Meter Temperature Humidity Sensor Built-in 1000mAh Battery, Indoor/Outdoor (Orange) | Model Carbon Monoxide Detector Alarm, KARUOTOP Portable 10-Year Battery CO Alarm with Digital LCD Display, Battery Powered CO Detector for Home, Office and Travel | Model Carbon Monoxide Detector,Mini CO Detector for Travel, Air Quality Monitor,Stylish and Lightweight CO Monitor for Home Indoor/Outdoor |
BrandLunarlipes | Brand INKBIRDPLUS | Brand USBNOVEL | Brand HAKINAKU | Brand KARUOTOP | Brand Wintall |
Reviews | Reviews  | Reviews | Reviews | Reviews | Reviews  |
Features | |||||
Worth the money 8.9 | Worth the money 9.1 | Worth the money 9.1 | Worth the money 8.9 | Worth the money 8.4 | Worth the money 8.1 |
Simple to use 8.6 | Simple to use 9.1 | Simple to use 8.6 | Simple to use 8.4 | Simple to use 7.7 | Simple to use 7.6 |
Clearly written 8.9 | Clearly written 9.1 | Clearly written 8.4 | Clearly written 8.6 | Clearly written 8.1 | Clearly written 7.9 |
Tech Specs | |||||
customer reviews4.3 4.3 out of 5 stars 1, 038 ratings 4.3 out of 5 stars | customer reviews 3.9 3.9 out of 5 stars 41 ratings 3.9 out of 5 stars | customer reviews - | customer reviews 4.1 4.1 out of 5 stars 542 ratings 4.1 out of 5 stars | customer reviews 4.7 4.7 out of 5 stars 129 ratings 4.7 out of 5 stars | customer reviews 4.5 4.5 out of 5 stars 20 ratings 4.5 out of 5 stars |
product dimensions 1.18D x 2.75W x 2.99H | product dimensions 2.76 x 2.95 x 1.18 inches | product dimensions - | product dimensions 0.67D x 2W x 3.35H | product dimensions 5.31 x 0.98 x 2.76 inches | product dimensions 2.08D x 0.71W x 3.15H |
item weight 5.6 ounces | item weight 5 ounces | item weight - | item weight 3.68 ounces | item weight 5.3 ounces | item weight 2.56 ounces |
power source Rechargeable Lithium Battery | power source Battery Powered | power source - | power source Battery Powered | power source Battery Powered | power source Battery Powered |
batteries included Yes | batteries included Yes | batteries included - | batteries included Yes | batteries included Yes | batteries included - |
included components 1 Carbon Monoxide Detector PTH-10D, 1 Lanyard, 1 User Manual, 1 Type-C Cable | included components - | included components - | included components 3in1 CO detector, Lanyard, Manual, Type C cable | included components 1 User Manual, 1 Carbon Monoxide Detector, 1 Screw Kit | included components 1 CO Detector, 1 Portable Hook, 1 Manual, 1 Type-C Cable |
alarm Audible, Visual | alarm - | alarm - | alarm Audible | alarm Audible | alarm 1 |
battery cell type Lithium Polymer | battery cell type Lithium Ion | battery cell type - | battery cell type Lithium | battery cell type Lithium Metal | battery cell type - |
batteries 1 Lithium Polymer batteries required. included | batteries 1 Lithium Ion batteries required. included | batteries - | batteries 1 Lithium Ion batteries required. included | batteries 1 Lithium Metal batteries required. included | batteries - |
material ABS + Metal | material - | material - | material ABS | material ABS | material ABS |
style Portable 3-in-1 PTH-10D With Magnetic | style Simple, portable and energy-saving | style - | style professional | style - | style Small and Lightweight |
batteries required Yes | batteries required Yes | batteries required - | batteries required Yes | batteries required Yes | batteries required - |
color Green | color - | color - | color 1-Orange | color Black | color - |
sensor type Electrochemical | sensor type - | sensor type - | sensor type NDIR | sensor type Electrochemical | sensor type - |
Available On | Available On | Available On | Available On | Available On | Available On  |
Our Top 3 Picks
Here are the top 3 recommended products with more information to help you find the right product for you
9.8
1LunarlipesLunarlipes Portable Carbon Monoxide Detectors for Travel, Mini 3-in-1 Carbon Monoxide Monitor with Magnetic Suction, RV CO Detector Alarm Temp/Humidity Sensor, Rechargeable CO Monitor 120HR Standby
8.9 worth the money8.9 clearly written8.6 Simple to useMain highlights- 【SHOP WITH CONFIDENCE】Your satisfaction is our top priority. We provide 3 years service and lifetime technical support for CO detector portable. If you encounter any problems, just contact us through Amazon Customer Service or Q&A and we will reply within 12 hours. risk-free shopping. Customer satisfaction is our tireless pursuit.
- 【OUTDOOR LANYARD & MAGNETIC SUCTION】The bottom of the travel carbon monoxide detectors can be placed freely, you can put it on the table in the living room, kitchen, bedroom, etc. And it is equipped with a special outdoor lanyard, which is convenient for you to carry and use in outdoor activities such as travel, camping, picnic, and adventure. There is also a magnetic function on the back of the travel co detectors, which can be attached to any metal area such as home appliances or cars.
- 【LARGE CAPACITY BATTERY & FAST CHARGING】This MINI 3-in-1 Carbon Monoxide Monitor has a built-in 1000mAh Li-ion battery and supports 10~65W fast charging protocol charging. TYPE-C fast charging can be fully charged in just 1 hour (regular 4 hours). The CO monitor enters low brightness power saving mode after 5 minutes of inactivity, and you can enjoy up to 120 hours of standby time. Ideal for travel, vacation, camping or any outing.
- 【HIGH-PRECISION 3-IN-1 CO DETECTOR】The 3-in-1 portable carbon monoxide detector can monitor the current CO concentration, temp and humidity in the air in real time. Equipped with a high-precision sensor (10-year life), the detectable CO concentration range is 0~500PPM, the temperature range is 14~122℉ / -10~50℃, and the humidity range is 0~95%RH. The data is accurate without delay, and real-time monitoring allows you to know the air quality of the environment at any time.
- 【3 LIGHT INDICATIONS & CUSTOM ALARM VALUES】The carbon monoxide alarm can present 3-stage light indications according to the CO concentration in the air. 0~49PPM (green area flashing=safe), 50~99PPM (yellow area flashing=warning), 100~500PPM (red area flashing=danger). By default, the CO alarm will sound an alarm when it reaches 50PPM. You can double-click the "function key" to customize the CO concentration alarm threshold. When the sound alarm sounds, you can press the "function key" to pause for 15 seconds. After 15 seconds, if the CO concentration continues to exceed the standard, the buzzer will sound again until the CO value is lower than the alarm value.
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9.5
2INKBIRDPLUS
INKBIRDPLUS Portable CO2 Detector, Mini Indoor CO2 Monitor, NDIR Sensor with Full Color LCD, for Home, Office, Travel (PTH-10C)
9.1 worth the money9.1 Simple to use9.1 clearly writtenMain highlights- Wide Application: Contains 1x CO2 detector, 1x lanyard, 1x 2m charging cable and user manual. This portable CO2 monitor is suitable for home, office, grow tent and more
- Portable and Long-Lasting: Small and portable, the included lanyard allows you to take this portable CO2 sensor anywhere. Built-in 1000mAh lithium battery, it can be fully charged within 3 hours, and the battery life is about 72 hours
- NOTE: We recommend that when using the detector for the first time, place the device in an open and uninhabited environment and manually calibrate it once to avoid inaccurate readings
- High-Quality CO2 Detector: This portable CO2 meter uses an advanced NDIR sensor to detect carbon dioxide through infrared sensing technology, with high precision, strong anti-interference and excellent stability
- HD Full-Color LCD Display: Full-color LCD display, clear and easy to read, eye protection. If there is no operation for 5 minutes, it will automatically enter the energy-saving ECO mode
- CO2 Concentration Level: There are three indicator lights on this carbon dioxide monitor - green light for good (400~699ppm), yellow light for medium (700~1499ppm), red light for danger (1499~5000ppm)
- Audible Alerts & Custom Alert Values: When the detected CO2 concentration exceeds 1500ppm, the device will also send out an alarm to remind you. And the CO2 alarm value is customizable
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9.2
3USBNOVEL
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)
9.1 worth the money8.6 Simple to use8.4 clearly writtenMain highlights- Small in size and powerful in protection, our compact carbon monoxide detector features an advanced electrochemical carbon monoxide sensor that accurately detects carbon monoxide levels no matter where the detector is placed in the room. To ensure complete protection, be sure to place one on each layer. Your home and every bedroom.
- Our Carbon Monoxide alarms have been rigorously tested, and complies with UL standards.Package: 1 x Carbon Monoxide Alarm ,2 x Screws,1 X double-sided glue,1 x User Manual, If you have any questions about our CO detectors, Please reach out to us anytime.
- Note: This is only carbon monoxide detector,Not CO2 Detector. Mini Size: 1.85*3.15*1.02 inches, even smaller than our palm, Keep your family safe with this easy-to-use digital display, battery-operated carbon monoxide alarm CO alarm detector(Batteries not included), with CO digital display and sound alarm, Note :This is not a plug-in style, but battery powered Small Size,Suitable for home, travel.
- Easy to use: 3pcs 1.5V AAA battery powered carbon monoxide detector(Batteries not included), low current consumption, super long standby time. Carbon monoxide detectors are easy to install and require no rewiring. Simple to use with a single test/reset button, a red LED will flash when dangerous levels of carbon monoxide are detected, and there will be a loud alarm mode - 85 decibel loud alarm with LED flashing.
- Alarm Standard: The alert time depend the level of carbon monoxide concentration. 50ppm, alert within 90 minutes; 100ppm, alert within 40 minutes; 300ppm, alert within 3 minutes.(Note: When you test the detector, please do not use gas blow the hole directly.)Under normal working conditions, the green light flashes every 30 seconds, and the screen enters power saving mode and becomes dim.
Our ranking system
At BestChoice.com, our team curates a selection of top products from a vast array available online, using a sophisticated ranking system based on carefully defined criteria.While traditional hands-on testing has its merits, our use of AI technology offers distinct advantages. AI allows us to process and analyze vast amounts of data from multiple sources, providing a comprehensive view that goes beyond what manual testing can achieve. This approach enables us to deliver insights that are aligned with current trends and consumer preferences, ensuring our reviews are both relevant and up-to-date.
Features
Our AI-driven analysis examines key attributes, capabilities, and other critical factors tailored to each product category. This method allows us to assess effectiveness from various perspectives, ensuring a well-rounded evaluation.
Consumer Reviews
We aggregate and evaluate consumer feedback from across the internet, giving weight to ratings and reviews that reflect the most reliable insights. AI enhances this process by filtering and prioritizing data, offering a balanced view without the need for direct personal endorsements.
Popularity
Our system also considers the popularity of products, analyzing factors such as market presence, reputation, and user satisfaction. By leveraging AI, we capture a comprehensive picture of a product's standing in the market, which may not always be evident through traditional testing.
Value for money
AI allows us to compare products based on attributes like price, specifications, and user feedback, helping to determine their value for money. This data-driven approach offers an efficient and reliable way to assess how products stack up against one another in terms of cost-effectiveness.
