TOP PICKS
Bestseller No. 1
SAF Aranet4 Home: Wireless Indoor Air Quality Monitor for Office or School (CO2, Temperature, Humidity and More) Portable, Battery Powered, E-Ink Screen, App for Configuration & Data History
- BREATHE EASILY: Aranet4 CO2 meter measures CO2 levels, temperature, relative humidity, and atmospheric pressure in real-time, empowering you to make informed decisions for healthy ventilation. No wonder it's the top-rated indoor air quality monitor in Amazon's CO2 monitor segment!
- CABLE-FREE: The power-efficient e-ink display guarantees an extended battery life of up to 4 years for this wireless air quality monitor, ensuring worry-free monitoring without the hassle of cables and cords.
- EASY-TO-USE: The color coding, prominent CO2 number on the display, and optional buzzer of this air quality meter alert you when the CO2 concentration becomes too high.
- FREE & INTERACTIVE APP: A smartphone application for viewing and analyzing up to 90 days of historical data from your indoor air quality meter, complete with user-friendly graphs.
- PREMIUM QUALITY: Aranet4 carbon dioxide detectors use nondispersive infrared sensor (NDIR) technology for the most precise and reliable CO2 measurements. Made in the European Union.
Bestseller No. 2
5-in-1 Professional Indoor Air Quality Monitor Indoor Portable CO2 Monitor | Temperature | Formaldehyde Detector | Humidity TVOC | Air Quality Tester - Confined Space Clean Air Monitor
- 【Protect Your Every Breath】 Since clean air means a lot to every one, the 5-in-1 air quality monitor will be your best choice. It can accurately monitor CO2, TVOC, HCHO, humidity& temperature. You can monitor the environment at any time.
- 【Accurate & Reliable】 Equipped with a fast-responding and sensitive high-performance chip, the air quality monitor can precisely capture the weak currents generated during electrochemical reactions. Dual color & voice alerts keep you informed of the current air quality conveniently.
- 【Low Power Alerts】Built with 1200mAh rechargeable battery and packaged with one 5V USB cable, the standby time can last for 10 hours. Never be anxious about low power.
- 【Safety Design】 The mesh design allows for better heat dissipation during operation, preventing the device from getting hot, and more accurate measurement data.
- 【Warm Notice】 Please notice that this air quality monitor is designed for indoor spaces, so please close the door & windows before testing. Or else the data may not be accurate. We recommend using the monitor and keeping it working for at least 60 minutes before reading the data.
Bestseller No. 3
Temtop CO2 Monitor Indoor air Quality Monitor Portable CO2 Meter, CO2, Temperature, Humidity Home, Office or School
- 【Multifunctional CO2 monitor】Real-time CO2 detect, humidity and temperature monitor. CO2 detection range: 400-5000PPM. Temperature detection range: -10-60°C (14-140°F). Humidity detection range: 0-99%RH.
- 【Cost-effectiveness and 70 days standby】the latest Photoacoustic CO2-Sensor incorporates intelligent algorithm , offering dual detection modes and using up to 70 days ! It provides you with the most cost-effective CO2 detector.
- 【Mini and Multi Application】Small and thin , easy to carry, also with a detachable stand and adsorptive back cover. You can check air quality anywhere and anytime.
- 【Multiple alarm modes 】the color coding and optional alarm, will sound the warning when the CO2 concentration exceeds the limit.
- 【No Disturb for a Worry-Free Life】the sound alarm can be turned off, and without backlight, no noise and light disturbances, allowing you to easily fall asleep at night.
SaleBestseller No. 4 −7%
Newentor CO2 Monitor, Indoor Air Quality Meters, Carbon Dioxide Detector with Voice Alert, Large Display CO2 Tester, Temperature Humidity Sensor, Alarm Clock for Home, RV, Grow Tents, 400-5000ppm
- 🏕️ [High-precision CO2 Sensor]: The CO2 detection adopts the most advanced sensor of Swiss Sensirion's unique PASens technology, and adopts the photoacoustic detection principle to perform accurate and reliable measurements in a wide range of concentration areas and applications.
- 🔔 [Carbon Dioxide Concentration Alerts]: The CO2 concentration alert value can be customized to make our life, work or production environment safer.
- 💧 [Temperature and Humidity Monitor]: Temperature and humidity are closely related to human body, plants or storage environment. This air quality tester has the function of real-time monitoring of temperature and humidity.
- ⏰ [Clock Calendar and Alarm Clock]: This indoor air quality meters can also be used as a daily clock and alarm clock, with multiple functions to make life more convenient.
- ⛺ [Wide Range of Applications]: This CO2 sensor is widely used in agricultural planting, greenhouse vegetables, production warehouses, raw material processing, daily life, computer room, wine cellar, RVs, schools, cafes, etc.
Bestseller No. 5
Norpolifomor Portable CO2 Monitor CO2 Sensor,3 in 1 CO2 Concentration Monitor for Travel,Camping, Office, School, Home, Indoor/Outdoor,Battery Powered
- Real_time Air Quality Meter:This air quality tester applies for indoor/outdoor environments which allows you to monitor CO2 levels, temperature, relative humidity, and atmospheric pressure in real-time.Note:Please allow the differece (about ±50 ppm)among different CO2 detectors. it's normal as different CO2 meters equip with different NDIR sensors.
- Necessity of Air Quality Monitor: Carbon dioxide (CO2) is no harm in low level as it coexists with our human being, but when it excesses a certain value, it will affect our breath system or other organs. It would be fatal if the concentration of carbon dioxide is too dense to breath. Thus, we ought to monitor the CO2 value of air wherever we are so that we all deserve a portable CO2 tester all the time.
- Advanced NDIR Technology: Mini CO2 meter equips high precisive NDIR sensor to detect carbon dioxide value accuratly and quickly. when the concentration of CO2 in the air exceed the setting alarm value(default alarm value: 1000 PPM), the buzzer will automatically alert people to keep the room or other confined space ventilated.
- Portable Air Quality Detector: CO2 Monitor built-in 800mAh rechargeable battery. It can be used continuously for about 8 hours after fullly charged. To save power,the screen backlight will automatically turn off(sleep) when there is no operation or alarm , but the detector will continue detecting concentration of CO2 yet.(The sleep time could be adjustable as per the instruction from user manual)
- Premium Carbon Dioxide Meter: Norpolifomor Premium air quality monitor always care for our breath and health indoor/outdoor. It enable detect air pollution at different senarios,such as homes, kitchens, bedrooms, offices, schools, cars, hotels, travel, camping, etc.
Bestseller No. 6
Lunarlipes Portable 4-in-1 Carbon Monoxide Detectors, Mini Carbon Monoxide and Carbon Dioxide Monitor with Magnetic Suction, RV CO CO2 Detector Alarm Temp/Humidity Sensor, CO CO2 Air Quality Monitor
- 【HIGH-PRECISION 4-IN-1 CO DETECTOR】The portable 4-in-1 carbon monoxide detector can monitor the current CO, CO2, temperature and humidity in the air in real time. Equipped with a high-precision sensor (10-year life), the detectable CO concentration range is 0~1000PPM (±10%), the CO2 concentration range is 400~5000PPM [± (50PPM + 5%)], and the temperature range is 14~122℉ (±2.7℉) / -10~50℃ (±1.5℃), humidity range is 0~95%RH (±5%RH). The data is accurate without delay and monitored in real time.
- 【CO LIGHT INDICATION & CUSTOMIZED ALARM VALUE】The carbon monoxide monitor can present 3-stage light indication based on CO concentration. 0~99PPM (green flashing=safe), 100~149PPM (yellow flashing=warning), 150~1000PPM (red flashing=danger). By default, the CO monitor will sound an alarm when it reaches 150PPM. You can double-click the "function button" to customize the CO concentration alarm threshold. Note: The device must be in the "CO" interface before entering CO custom settings.
- 【CO2 LIGHT INDICATION & CUSTOMIZED ALARM VALUE】The carbon dioxide monitor can present a 3-stage light indication according to the CO2 concentration. 400~699PPM (green flashing=safe), 700~1499PPM (yellow flashing=warning), 1500~5000PPM (red flashing=danger). By default, the audio alarm sounds when it reaches 1500PPM. You can double-click the "Function Button" to customize the CO2 concentration alarm threshold. Note: The device must be in the "CO₂" interface before entering the CO2 custom setting.
- 【LARGE CAPACITY BATTERY & FAST CHARGING】The MINI 4-in-1 CO detector has a built-in 1000mAh lithium battery for long-lasting power. Support QC2.0, PD3.0, AFC, USB C UFP (BC1.2 DCP CDP SDP) and other common fast charging protocols 10~65W charging. When the CO detector is not operated for 5 minutes, it will automatically turn on the energy saving mode (the brightness of the screen will be reduced), and you can click the "function button" to turn on the backlight.
- 【OUTDOOR LANYARD & MAGNETIC SUCTION】The bottom of the CO CO2 air quality monitor 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 CO CO2 monitor, which can be attached to any metal area such as home appliances or cars.
SaleBestseller No. 7 −11%
3 in 1 Carbon Dioxide Detector, Abiaopure Air Quality Monitor Indoor Lightweight Portable CO2 Detector(Pack 1) (AIR03)
- Battery & USB charging - Rechargeable lithium battery with a capacity of 2500 mAh, standby for 40 hours, supports USB charging and battery indicator. You can check the air quality from anywhere
- High-Precision CO2 Sensors - Use of non-dispersive infrared technology (NDIR), full temperature range correction, high measurement accuracy, fast response, resolution up to 1 ppm that can accurate detect air of Carbon Dioxide(CO2), measuring range up to 400 to 5000 ppm
- 3 in 1 Multifunctional Air Monitor - The smart air quality monitor accurately detects current carbon dioxide concentrations, temperature and humidity in the air.
- Large LED digital Display - Smart touch LED digital display, easy to operate, you can clearly see the carbon dioxide concentration, temperature and humidity displayed by the air quality detector. Carbon dioxide concentration has red, yellow and green indicators
SaleBestseller No. 8 −7%
INKBIRDPLUS Portable CO2 Detector, Mini Indoor CO2 Monitor, NDIR Sensor with Full Color LCD, for Home, Office, Travel (PTH-10C)
- 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
- 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
- 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
- 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
SaleBestseller No. 9 −13%
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)
- Accurate & Easy to Read - New Imported Electrochemical Sensor, high reliability, more responsive, to avoid the possibility of false alarms.
- AC Power Plug-in Innovative Design - Eliminates difficult installation challenges, plug-and-play, short warm-up time, easy and fast to use.
- Breakthrough Heat Dissipation Design - Using ABS advanced material and optimized heat dissipation structure, continuous daily use without heat.
- Digital Display - Real-time monitoring of carbon monoxide gas levels, according to the carbon monoxide concentration real-time display, easy to understand and clear, eliminating the worry.
- Loud 85DB Warning - When the carbon monoxide gas concentration reaches the default value, the carbon monoxide alarm will sound in time, the loud volume allows you to react faster and make quick judgment to protect your safety.
BUYING GUIDE
Keeping track of carbon dioxide (CO2) levels is crucial for maintaining good air quality in indoor spaces. Elevated levels of CO2 can affect concentration and may lead to various health issues. CO2 monitors are a convenient way to regularly assess the CO2 levels in your home, office, or any indoor setting. Here are some important features to consider when choosing the best CO2 monitor:
1. Accuracy
The accuracy of the CO2 sensor is paramount. Look for devices with an error margin of less than 50 ppm for most residential or light commercial uses.
2. Display
The monitor should have a user-friendly display that shows CO2 levels, and possibly temperature and humidity, in an easy-to-read format. Some monitors have color-coded systems to give you a quick idea of the air quality.
3. Range
CO2 monitors vary in the range of CO2 concentrations they can measure. Make sure the monitor you choose is suitable for the area you intend to use it in.
4. Data Logging
Some models have data logging features, allowing you to track CO2 levels over time. This can be useful for identifying patterns and making necessary adjustments.
5. Connectivity
Modern CO2 monitors often include Wi-Fi or Bluetooth connectivity, enabling you to view data on your smartphone. This is a handy feature but may not be necessary for all users.
6. Power Source
Consider how the device is powered. Some models are battery-operated, while others may need to be plugged into an electrical outlet. Choose one that suits your specific needs.
7. Portability
If you intend to use the monitor in multiple locations, portability will be a key consideration. Look for lightweight models with easy mounting options.
8. Additional Sensors
Some CO2 monitors come with additional sensors for things like temperature, humidity, or even other gases like radon. Consider whether these added features are necessary for your specific needs.
9. Alerts and Alarms
Look for a model that offers alerts or alarms that trigger when CO2 levels exceed a certain limit. This is a crucial safety feature that can be very helpful.
10. Brand and Warranty
Choose a reputable brand that offers a warranty and customer support. Read reviews and possibly consult professionals to make an informed decision.
By considering these factors, you can ensure that you choose a CO2 monitor that is both reliable and suited to your specific needs.
