Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service levels, popularity trends, and more. The rankings reflect our opinion and should be a good starting point for shopping. By purchasing the products we rank, you’ll get the lowest price we found while we may receive a commission at no cost to you, which will help us continue to provide you with value.
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.
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.
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!
【5.0 Bluetooth】Connecting this co2 monitor to INKBIRD APP, you can check the CO2 concentration, temperature, humidity, and air pressure in real-time.
【Sweden Premium NDIR Sensor Senseair】The indoor CO2 detector built-in Senseair sensor, accuracy (30ppm+3% of reading)
【Low-power Electronic Ink Display】 Ultra-long battery life for ultra-long protection. This air quality monitor supports full viewing angles display. CO2, temperature, and relative humidity are clear to view.
Curious about how we select the top products for you? Explore How It Works
How do we rank
Our AI-powered platform ranks products using multiple weighted factors from millions of products and user reviews across the web, providing the most valuable and real data. Higher scores rank first.
【USB Charging】Rechargeable lithium battery 3.7V 1200mAh. The battery can be used in a stable environment for about 12 hours. It can be used when charging. It is recommended to use 5V-1A charging head, and the charging time improves about 3 hours.
【Built-in CO2 Concentration Indicator and Alarm】The CO2 concentration is displayed digitally, and you can freely set the alarm range (800-2000ppm). When the CO2 concentration reaches the set value, an alarm will be sent to warn the ventilation. The alarm sound can be switched on or off.
【5 In 1 Multi Function】 The air quality monitor can detect the carbon dioxide, temperature, humidity, HCHO, TVOC at the same time. It can quickly measuring and obtaining a relatively stable measurement value.
【Four Color Alarm】: There are four different color to show the different qualities of the air being monitored: The green means the air quality is well and the colors ranging from yellow to orange to red mean worse air quality.
【Built-in Multiple Sensors】: This air quality monitor using infrared detection technology, laser detection technology and electrochemical detection technology to show you the accurate data.
【6 In 1 Air Quality Tester】: Come and try this new type multifunctional air quality detector, compared with other air quality detectors, this detector can testing PM2.5, PM10, HCHO, TVOC, CO and CO2 for you at the same time. This CO2 monitor can be used in your home, office, destop, hotel and other places.
【APP Real-Time Monitoring】After the mobile phone is connected to the 2.4GHz WiFi network, connect our CO2 detector in the INKBIRD APP, and you can receive and view the detection data at any time. And the app can output data to your email, you can also set the alarm value reminder function through the app.
【Convenient Calibration】 To ensure the accuracy of measurement, this WiFi CO2 monitor supports the calibration function. Press three buttons at the same time in an open environment and let it stand for 200 seconds to calibrate this CO2 meter easily.
【Accurate Reading】INKBIRD carbon dioxide monitor can accurately detect the current CO2 concentration, temperature, and humidity in the air. This CO2 detector uses the NDIR CO2 sensor.
TVOC Sensor: The CO2 detector with TVOC sensor is designed to monitor the CO2 value, temperature and humidity of air quality to maintain your environment. It is strongly recommended to use USB for charging.
Real Time Monitor: The carbon dioxide monitor can detect the concentration of carbon dioxide in the air in real time, and four warning lights flash at the same time when it is 1999.
Easy Reading: The CO2 monitor uses an intelligent color display with clear numbers. When the CO2 concentration is 1600-1999, the red warning light starts to flash and alarm.
Compact & Portable Design: Lightweight body (fits in one hand) for desktop use or on-the-go testing. Perfect for homes, offices, hotels, and travel.
6-In-1 Detection: Monitor PM2.5, PM10, HCHO, TVOC, CO, and CO2 simultaneously with one device – no need for multiple detectors. Ideal for comprehensive air safety checks.
3.5'' LCD Clear Display: Large screen with instant visual feedback shows precise numeric values and trends. Easily track air quality changes day or night.
[（CO2/Temp/Humidity）3-in-1 Monitoring] This 3-in-1 indoor air quality monitor provides real-time monitoring of CO2 concentration, temperature and humidity changes, helping to prevent dizziness and drowsiness caused by high levels of CO2. Combined with an intelligently adjustable air conditioning/fresh air system, it helps you to create a comfortable all-weather breathing space
[Long Battery Life, Up to 12 Months(max)] The built-in 3000 mAh lithium battery can be fully charged in about 6 hours and be used continuously for over 12 months. The actual duration depends on the sampling interval you choose (1/2/5/10 minutes), the longer the interval, the longer the duration. One charge for long-time companion, no need to charge frequently
[High Precision NDIR Sensors] It is equipped with a Swedish Sensirion sensor that accurately measures CO2 concentration from 0 to 9999ppm and an NDIR sensor that simultaneously measures temperature, accurate to ±0.2°C (±0.36°F), and humidity, accurate to ±1.8%RH, giving you insight into the air quality in your home
Portable Size: The 6 in 1 air quality tester is small and portable, easy to carry to anyewhere you want, you can check air quality anywhere and anytime.
Multifunction Air Quality Monitors: The indoor air quality monitor can accurately measure real-time levels of CO2, PM2.5, PM10, HCHO, TVOC. To help you know the air quality of the place where you live.
LCD Backlight Screen: The carbon dioxide detectors come with a LCD screen, color display with backlight makes each value clear at a glance, easy identification and reading.
[High Precision Sensors] It is equipped with a Swedish Sensirion sensor that accurately measures CO2 concentration from 0 to 9999ppm and an NDIR sensor that simultaneously measures temperature, accurate to ±0.2°C (±0.36°F), and humidity, accurate to ±1.8%RH, giving you insight into the air quality in your home
[Dual Alarm System] The ultimate light and sound dual alarm system makes it unique on the market. When CO2 levels reach dangerous levels, the IAM-T2 will sound an alarm and the indicator light will turn red. Good air quality is indicated by a green light and moderate air quality by a yellow light. You can adjust the alarm thresholds to suit your family's needs, ensuring a safe and healthy home environment
[3-in-1 Detection (CO2/TEMP/HUMIDITY)]The IAM-T2 can measure CO2, temperature and humidity all at once. It uses Bluetooth 5.0 to connect to your phone within 100 m / 328 ft, so you can check the air quality at any time at home from the INKBIRD app. It's easy to keep track of your home's environmental conditions, making every breath more comfortable and reassuring
Discover top deals and categories on AmazonCheck Deals
Curious about how we select the top products for you? Explore How It Works
