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.
SaleBestseller No. 2 −12%
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.
Bestseller No. 3
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. 4
5-in-1 Indoor Air Quality Monitor,Professional CO2 Monitor | Temperature | Formaldehyde Detector | Humidity TVOC | Air Quality Tester with Alarm for Rooms,Cellars,Grow Tents,Air Quality Tester,White
- 【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. 5
Norpolifomor Portable CO2 Monitor Indoor/Outdoor Wireless Air Quality Meter for Office or School (Temperature, Humidity and More) Portable, Battery Powered,Carbon Dioxide Detector for Travel Camping
- 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
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.
Bestseller No. 7
AIROASIS 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. 8
Birdie Design Indoor CO2 Monitor - Air Quality Meter for Home & Office - Promotes Mental & Physical Health - Accurate CO2 Measurement - Modern Interior Decor - Reducing Health Risks with Clean Air
- Birdie is an indoor air quality meter, improving your indoor climate & health.
- 90% of our life is spent indoors. Often in poor air quality that increases the risk of asthma, headache, fatigue, and sleep disorders. Experts suggest that one of the best ways to improve indoor air quality is by ventilating frequently. This is a huge but invisible problem, calling for a visible solution - so we looked for one and came to think of 'the canary in the coal mine'.
- Around 1911, miners started carrying canaries into the coal mines to detect toxic air. When the bird fainted, it was time to get out of the mine. With a built-in CO₂-sensor, Birdie works the same way - but as design decor in your home, office, or classroom. A reward-winning air quality monitor.
- When air quality is poor Birdie will drop down until you open your windows in your office, home or classroom and bring it back to life. A simple yet exquisite co2 detector and indoor air quality meter.
- Unlike other indoor air quality monitors, this patent-pending solution will let you know when to ventilate your home without the use of light, sound, or phone notifications. The perfect indoor air quality monitor to use as home decor or office decor.
SaleBestseller No. 9 −33%
3 in 1 Handheld CO2 Meter with Alarm,400-5000ppm CO2 Carbon Dioxide Detector with 3 Color Screen,Air Quality Monitor,CO2 Monitor Indoor ℃/℉ Temperature Humidity Tester
- The instrument is used to measure carbon dioxide content and temperature and humidity in the environment, and is widely used in agriculture, aquaculture and industrial fields. Such as: planting greenhouses, livestock farms, beer, carbonated beverages, energy saving and environmental protection products production process and underground operation safety production. In our daily living environment such as: kindergartens, schools, office buildings, shopping malls, supermarkets, stations, hospital
- Warmtips: 1.The measuring range of the instrument is 400-5000ppm. If it exceeds 5000ppm, H1 will be displayed and there will be a continuous beep. It needs to be shut down and restarted before testing. 2.Energy saving design: Automatic shutdown within 3 minutes. 3.When you exhale into the instrument, the measurement value will quickly reach a high level and there will be continuous beeping alarms. Please shut down and restart the measurement.
- Measuring CO2 content, temperature, humidity. Measurement result HOLD function
- LCD two-line display, showing both CO2 content and temperature and humidity
- Green/yellow/red backlight prompt function
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.
