TOP PICKS
Bestseller No. 1
CO2 Meter Air Quality Monitor Handheld CO2 Monitor 0~9999ppm Measurement Carbon Dioxide Temperature Humidity Detector NDIR Sensor Indoor Outdoor Air Quality Tester
- HIGH ACCURACY: CO2 Accuracy 0~2000ppm(±50ppm or ±5% of the reading); 2000~9999ppm(±10% of the reading)
- LARGE MEASURING RANGE: CO2: 0~9999ppm ; Temperature: -10~60°C(Accuracy ±0.6°C) ; Humidity: 0.1% ~ 99.9%RH(Accuracy ±3%RH) ; Dew Point: -20.0~59.9°C ; Wet Bulb: -5.0~59.9°C
- USER FRIENDLY: Portable Handle Design; Easily manual calibration on CO2 and humidity; Stable NDIR CO2 sensor
- POWER SUPPLY: Dual power source battery (included) or 9V adaptor (NOTED: adaptor is not included in set); Power from battery is automatically cut off when 9V adaptor is in use
- APPLICATION: IAQ monitoring and survey; especially on CO2 level and air ventilation become widely applied in public areas such as offices; classrooms; factories; hospitals and hotels
Bestseller No. 2
CO2 Carbon Dioxide Detector, Indoor Air Quality Monitor 4-in-1 Portable CO2 Monitor, Tester for Carbon Dioxide, Temperature & Relative Humidity, CO2 Meter with Alarm, for Home, Car, Grow Tents, Travel
- Indoor CO2 Monitor: Compact size Body with hollow back design for carring and airflow. Big colorful LCD digital screen for people easy to identify and read. Not only monitoring the CO2 content, also can test the temperature & humidity. Air quality monitor is Keeper of family health, Perfect for home interior, such as living room, baby room, classroom, office and which closed places etc.
- Necessity of Air Quality Monitor: Carbon dioxide (CO2) is not harmful to human body when it is low, but when it overs a certain amount, it will affect the breathing of humans (and other organisms). If serious, life is threatening. Thus, we have to monitor the CO2 content of air for keeping health.
- Advanced NDIR Technology: Mini CO2 meter uses high precision NDIR sensor technology to detect carbon dioxide content accurately and quickly. and it can hazard assessment, when CO2 of air exceed the setting alarm value(alarm value: 1000 PPM), it will warn to remind people to open the window or turn on air purifier for keeping balance of air.
- Air Semiconductor Sensor: 4-in-1 air quality monitor adpots intelligent air semiconductor sensor to test the temperature and humidity value of air. Compare with the common sensor, it is more sensitive, accurately and stable.
- Convenient for Carrying: CO2 Monitor built-in 1600mAh battery. It can be used continuously for about 8 hours after full charging.So don't worry, take the CO2 meter to anywhere you want go.
SaleBestseller No. 3 −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. 4
LSENLTY Portable CO2 Detector, 2s Refresh High Accuracy Carbon Dioxide Monitor, 3 in 1 CO2 Meter(Temperature, Humidity and CO2 Value), 96 Hours Standby Time CO2 Monitor for Travel Camping Home Office
- Portable Carbon Dioxide Detector: The product has a compact size (size: 7.6x7x3 cm) and is equipped with a strap design, suitable for hanging on the wall, car, or backpack. Suitable to use for camping, hanging on the wall in the living room or bedroom at home, or placed on the desktop in the office.
- 3 in 1 Air Quality Monitor: LSENLTY 3 1 CO2 monitor not only has all the basic functions (CO2, temperature, and thermometer hygrometer monitor) but also smart functions such as remote monitoring, CO2 concentration, temperature, and humidity graph We support this. Our indoor CO2 detectors are reliable and easy to use in homes, greenhouses, etc.
- High Accuracy & Fast Refresh Time: With a high-quality smart sensor, CO2 accuracy is ±50PPM (CO2 detection range: 400-5000PPM) and temperature is up to ±1.8℉ (temperature detection range: 14-122℉). correct. Humidity is ±5%RH (humidity detection range: 0 to 95%RH). Always see the latest changes in CO2 concentration, temperature, and humidity with an update rate of up to 2 seconds.
- CO2 Alarm Function: When it exceeds 1500ppm, the alarm will sound automatically, and you can also set different alarm ranges according to your needs. You will receive an alert as soon as CO2 exceeds a preset range. Understand the condition of bedrooms, baby rooms, wine cellars, basements, plant nurseries, and other areas.
- CO2 Concentration Stage: This CO2 detector is designed with 3 stages of CO2 concentration: normal stage (400-700 ppm), warning stage (700-1500 ppm), and danger stage (1500-5000 ppm). LSENLTY CO2 detector provides you with a healthier life.
SaleBestseller No. 5 −11%
Extech CO240 Handheld Indoor Air Quality and Carbon Dioxide Meter
- Dual display of Carbon Dioxide (CO2) concentrations and Relative Humidity, Temperature, Dew Point, or Wet Bulb
- Maintenance free NDIR (non-dispersive infrared) CO2 sensor
- Audible CO2 warning alarm when concentration level exceeds high user set point
- Min/Max CO2 value recall function
- Data Hold, Auto Power Off (with disable), Low battery indicator
Bestseller No. 6
Air Quality Monitor 3 in 1 Carbon Dioxide Detector Portable, NDIR Sensor, CO2 Monitor Rechargeable, 400-5000 ppm Temperature(°F) and Humidity Meter for Home
- This is a commendable air quality monitor. Its compact body can provide monitoring results of carbon dioxide concentration, temperature and humidity. You will have a clear understanding of the environment in which you live.
- The detector monitors the carbon dioxide concentration at any time. Staying in a space with too high carbon dioxide will make you unable to concentrate and make you drowsy. Obviously, the content within 999PM is still acceptable. When it exceeds 1999PM, you need to pay extra attention. This is not a healthy value!
- Convenient Calibration - The carbon dioxide monitor is plug and play, with a built-in accurate air quality infrared (NDIR) sensor, it only takes 30 seconds of initialization after touching the switch to get stable and accurate data. Meanwhile, you can connect any 5V adapter to support charging while working.
- Rechargeable Battery Power - Our indoor air quality detectors comes with usb cable and built-in 2500mAh Li-ion battery with up to 24 hours of battery life, supporting long time continuous use.The large and clear LED display is designed to increase the brightness of the displayed data, so that even the elderly can see it clearly.
- Wide Application - This portable CO2 meter is compact and easy to carry, it can be used in grow rooms, offices, kitchens, schools, kitchens, bedrooms, cellars and cars. If you have any quality problems, please contact us in time, we will provide you with satisfactory service.
Bestseller No. 7
CO2 Carbon Dioxide Detector, 4-in-1 Indoor Air Quality Monitor Portable CO2 Monitor, Tester for Carbon Dioxide, Temperature and Relative Humidity, CO2 Meter with Alarm, for Grow Tents, Homes, Cars
- Indoor CO2 Monitor: Compact size Body with hollow back design for carring and airflow. Big colorful LCD digital screen for people easy to identify and read. Not only monitoring the CO2 content, also can test the temperature & humidity. Air quality monitor is Keeper of family health, Perfect for home interior, such as living room, baby room, classroom, office and which closed places etc.
- Necessity of Air Quality Monitor: Carbon dioxide (CO2) is not harmful to human body when it is low, but when it overs a certain amount, it will affect the breathing of humans (and other organisms). If serious, life is threatening. Thus, we have to monitor the CO2 content of air for keeping health.
- Advanced NDIR Technology: Mini CO2 meter uses high precision NDIR sensor technology to detect carbon dioxide content accurately and quickly. and it can hazard assessment, when CO2 of air exceed the setting alarm value(alarm value: 1000 PPM), it will warn to remind people to open the window or turn on air purifier for keeping balance of air.
- Air Semiconductor Sensor: 5-in-1 air quality monitor adpots intelligent air semiconductor sensor to test the temperature and humidity value of air. Compare with the common sensor, it is more sensitive, accurately and stable.
- Convenient for Carrying: CO2 Monitor built-in 1600mAh battery. It can be used continuously for about 8 hours after full charging.So don't worry, take the CO2 meter to anywhere you want go.
Bestseller No. 8
Carbon Dioxide CO2 Meter for Incubators | USA NIST Calibration | USB Recharge | Adjustable Sound, Light & Vibration Alarms | 0-10% CO2 |
- ⚛️ DETECT: Single-gas detector for carbon dioxide, 0 - 10% with 0.01% resolution. Comes FACTORY-CALIBRATED. Turn ON and GO.
- 🔋ACCURACY: Dual Beam NDIR sensor with accuracy: ≤ 5% F.S. and response time: T < 30 sec. Zero and span calibration options.
- 🎆 ALARMS: Adjustable Audio, visual, and vibration alarms.Temperature, battery and time tracking.
- 💪 STRONG: Shock proof, water resistant (IP65), dust proof and explosion proof with belt clip and charging USB cable.
- 🕵️ TRUST: ** 1 YEAR limited warranty ** Arrives with calibration and QA certificate ** 100% product test and verification in the USA ** 100% quality guaranteed **
Bestseller No. 9
CO2 Meter Portable CO2 Detector Digital CO2 Monitor with Alarm Function Carbon Dioxide Temperature and Humidity Meter, NDIR CO2 Sensor Indoor Air Quality Monitor for Home Office Grow Room
- HIGH PRECISION: The CO2 Detector is euipped with high accurate sensative chip, the accuracy of CO2 level is: 0-2000ppm(-50ppm/+50ppm or -5%/+5% of the reading); 2000-9999ppm(-10%/+10% of the reading); Humidity: 0.1%- 99.9%RH(Accuracy -3%/+3%RH)
- Large Measurement: This CO2 Meter is designed with accurate and large measuring range, CO2: 0~9999ppm; Temperature: 14°F-140°F(-10°C/+60°C); Humidity: 0.1% - 99.9%RH; Dew Point: -20.0°C-59.9°C; Wet Bulb: -5.0°C-59.9°C
- AUDIBLE AND VISUAL ALARMS - The CO2 Detector will alarm when CO2 level exceed your desired threshold, enabling you to take immediate action to improve air quality
- Large LCD SCREEN: CO2 Meter has large LCD display and equipped with backlight function, it can display real-time CO2 level, temperature, and humidity readings at the same time
- WIDE APPLICATION -The CO2 meter provides precise readings of carbon dioxide levels up to 9999ppm, helping you understand the air quality in your surroundings, IAQ monitoring and survey, especially on CO2 level and air ventilation become widely applied in public areas such as offices, classrooms, factories, hospitals, and hotels
BUYING GUIDE
Keeping tabs on carbon dioxide (CO2) levels in indoor spaces is essential for ensuring optimal air quality and maintaining a healthy environment. Whether you’re in an office, a classroom, or your own home, elevated CO2 levels can affect cognitive function and well-being. Here’s what you need to know when you’re in the market for the best carbon dioxide meter.
1. Accuracy
High accuracy is the most important feature of any carbon dioxide meter. For general indoor use, opt for a device that offers an error margin less than 50 ppm.
2. Display Interface
A clear, easy-to-read display interface can make all the difference. Many devices offer digital displays that can show CO2 levels, temperature, and humidity. Some even have color-coded displays to offer a quick overview of current conditions.
3. Measurement Range
The range of CO2 concentrations the device can measure is also an important consideration. Make sure the model you choose is fit for the size and type of the space where it will be used.
4. Data Logging
For those who like to track air quality over time, data logging features can be invaluable. This is especially useful for professional settings where long-term air quality monitoring is required.
5. Connectivity
Some carbon dioxide meters feature Wi-Fi or Bluetooth connectivity, allowing you to monitor CO2 levels remotely through a smartphone app. This can be particularly useful in smart home setups.
6. Power Options
Pay attention to how the meter is powered. Battery-operated units offer more portability, while plug-in models eliminate the need to replace batteries.
7. Portability
If you plan on moving the meter between different locations, consider its size and weight. Smaller, more lightweight models will be easier to transport.
8. Extra Features
Some meters come equipped with additional features such as temperature and humidity sensors. Depending on your specific needs, these extra capabilities might be worth the investment.
9. Alarms and Notifications
An alarm feature can be helpful for alerting you when CO2 levels surpass a certain point. This can be an essential feature for those who may not always be able to regularly check the device.
10. Brand Reliability and Warranty
Lastly, always go for a reliable brand that offers a good warranty and customer support. The quality of the build and the brand’s reputation can greatly impact the device’s durability and functionality.
Taking all these factors into account will help you make a well-informed decision in your search for the best carbon dioxide meter. Whether you need it for personal or professional use, a quality CO2 meter is a valuable tool for maintaining a safe and healthy indoor environment.
