Air Quality Monitor Indoor 5-in-1 Meter Pro CO2 Detector, CO2 Alarm, CO2 Monitor with APP, Large Display, Bluetooth Air Quality Tester for Home, Office, 2-Year Data Storage (Meter Pro CO2)
Original price was: $75.99.$69.99Current price is: $69.99.
Price: $75.99 - $69.99
(as of Sep 21, 2025 08:02:29 UTC – Details)
Product description
View all the information you want at once, making it easy for you to know when to ventilate home for a healthier environment.
1 Multiple Alarm Types
2 Accurate Device Readings
3 12-Month Battery Life
4 App Control
Large Clear LCD Display
Our largest screen to date allows you to easily read different data from any angle and distance.
One Button, Total Control
Just press once on your device button to refresh data, mute, and switch between Fahrenheit/Celsius.
Data Storage and Export
Supports 38 days local storage and 2 years app storage. Export data with one click via our app.
Adjustable Placement Choices
Comes with a wall mount and adjustable bracket. Can be hung or placed upright at 42° or 90°. Making it convenient for you to place around home.
Pair with SwitchBot Hub to unlock advanced smart features. 
12hr Weather Forecasts
Displays local outdoor temperature & humidity as well as weather forecast icons, helping you plan trips outside in advance.Supports temperature and humidity data display from the SwitchBot Meter Series device.SwitchBot Hub required. 
Voice Command Compatible
Supports Alexa, Google Assistant, Siri Shortcuts, IFTTT, and SmartThings.SwitchBot Hub required. 
Part of SwitchBot Ecosystem
Set up Automation using our app to enable SwitchBot products to work together seamlessly.When CO2 concentration levels exceed your set range, Battery Circuit Fan/Evaporative Humidifier can be turned on automatically (sold separately). SwitchBot Hub required.
SwitchBot Smart Hygrometer Thermometer
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Customer Reviews
4.5 out of 5 stars 702
4.3 out of 5 stars 1,068
4.2 out of 5 stars 8,087
4.5 out of 5 stars 9,669
4.2 out of 5 stars 14,771
Price
$69.99$69.99
$22.99$22.99
$14.99$14.99
$17.99$17.99
$14.99$14.99
Connection Method
Bluetooth
Bluetooth
Bluetooth
Bluetooth
Bluetooth
Coverage Range
393ft (no obstacles)
393ft (no obstacles)
393ft (no obstacles)
393ft (no obstacles)
393ft (no obstacles)
CO2 Monitor
✔
✘
✘
✘
✘
Temperature/Humidity Range
-4℉~149℉ / 0~99%RH
-4℉~149℉ / 0~99%RH
-4℉~149℉ / 0~99%RH
-4℉~149℉ / 0~99%RH
-4℉~149℉ / 0~99%RH
Temperature/Humidity Accuracy
±0.36℉ / ±2%RH
±0.36℉ / ±2%RH
±0.36℉ / ±2%RH
±0.36℉ / ±2%RH
±0.36℉ / ±2%RH
Local Data Storage
38 days
68 days
68 days
68 days
36 days
Smart App Control
✔
✔
✔
✔
✔
5-in-1 Multi-Functional Display Screen: SwitchBot Meter Pro CO2 features a 92-millimeter large screen that simultaneously displays CO2 levels, temperature & humidity, time, date, and comfort level. This indoor air quality monitor makes it easy to monitor your environment and decide when to ventilate for a healthier living space.
High Precision Sensor: Built with Swiss-made NDIR sensors, this CO2 monitor accurately monitors air quality by measuring CO2 levels every 1 second with an accuracy of ±50 ppm and a range of 400-9000 ppm. Its high sensitivity and stability ensure rapid and precise air quality feedback.
3 Alarm Methods: Customize CO2, temperature, and humidity range with trigger alerts. When limits are exceeded, you’ll be notified via sound alarms, visual screen alerts, and app notifications (SwitchBot Hub required). With this air quality monitor, you can continuously and effectively track air quality.
Portable and Durable: Our air quality detector measures 92mm x 79mm x 25mm and weighs just 154g. It has a built-in battery with up to 12 months of life and a low battery warnings. Features wall-mount holes and an adjustable bracket for versatile placement in any environment.
Sleek Design for Any Space: Featuring a modern, minimalist look, SwitchBot Meter Pro CO2 blends effortlessly into your living room, bedroom, or greenhouse. Also perfect for offices, gyms, classrooms, factories, or hotels, its versatile design ensures it fits seamlessly while keeping you informed about air quality.
Customers say
Customers find the air quality monitor works well with Home Assistant, has a big screen display, and offers good value for money. They appreciate its functionality, with one customer noting its 2-year data storage feature for monitoring trends over time. The device effectively improves indoor air quality, and customers like the well-done app. The accuracy receives mixed feedback, with some finding it very accurate while others report issues with CO2 readings.
12 reviews for Air Quality Monitor Indoor 5-in-1 Meter Pro CO2 Detector, CO2 Alarm, CO2 Monitor with APP, Large Display, Bluetooth Air Quality Tester for Home, Office, 2-Year Data Storage (Meter Pro CO2)
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Original price was: $75.99.$69.99Current price is: $69.99.
oartalk –
It works well and is 100% accurate. / Updates
I tested it for accuracy and am very happy. I will now use and trust it. I got the best results exhaling on the right side. In the application push the refresh button next the carbon dioxide levels, and it will show the results usually in about thirty seconds or less. I started exhaling and then pushed the button. The longer you hold your breath before the test the more carbon dioxide will be shown on the monitor. I also tested it outside. I do not live in a city. The normal outdoor carbon dioxide levels should be approximately 400 to 450 parts per million. I donât need to compare this monitor to any others. Because, the outdoor levels on earth are a known fact. Super happy this wasnât junk. If I want notifications on my telephone, I need to buy their hub. Itâs $50. But, I could be anywhere and get an alert for any of the various options available in the settings. Alerts are shown when you open the application. But, thatâs too late for me. So, for now I have them turned off. / On battery power the lowest carbon dioxide check is every five minutes. But, you can push the refresh button in the application to instantly check. I like the application and the ability to monitor everything over time. I need that function. Scrolling over the graphs can be done on the graph, and below it, on the time. The instructions were helpful.Update: #1 The measurement of carbon dioxide stops randomly for several hours at a time, as mentioned by other reviewers. It will stay locked on a number, and in the application show the same number for several hours. This has happened several times. I have reset the device, I have recalibrated the device, and I have removed the device in the application, as well as reinstalling the application, several times. It will work fine briefly. Then just get stuck and show the same reading for several hours.Tips: The update interval can be changed while on battery power. To change the update interval for being plugging in, you have to plug it in.The temperature on the display does not change to Fahrenheit, regardless of changing it in the application. You have to go to the settings, under Top Button Function, and select “Pressing the top button will switch the temperature unit”. Then press the top button once.The instruction manual says that if you do a calibration to do it on battery power. Also, it should be done outdoors.The carbon dioxide readings can be taken every five minutes on battery power and every one minute while plugged in. They can be taken more often while plugged in. But, that is not recommend. Due to possible heating up of the device. Which, may effect readings.The humidity and temperature can only refresh at the most, every five minutes.The application often does not show the latest readings, even after refreshing or closing and reopening. Usually, it will be behind by several minutes, and will eventually, randomly show the latest data. Also, after refreshing or opening the application it does not default to the latest readings on the graphs. So, every time you have to scroll for an unreasonable amount of time to get to the latest data. Plus, the scrolling and interaction of the graphs is glitchy and not consistent.I don’t want to pay for the Aranet4. But, it appears to be the only choice for a small device like this, that functions correctly.AirGradient is a larger device. But, it has won awards and is accurate. That one is $230, and $138 if you assemble it yourself.Update: #2 The company reached out to me after my review. I am revising my review back to 5 stars. Because, even though everything I said before is true, the malfunction of the reading of carbon dioxide âfreezingâ or stopping and the unit not taking any measurements for hours randomly or forever, only happens while the unit is plugged in. While, on battery power I have had no problems. But, the carbon dioxide measurement frequency is limited to every five minutes on battery power.That is not a super big deal. Considering, that I also have an Aranet 4, and both units have the lowest possible measurement frequency for humidity at five minutes. Both units are in basic contexts exactly the same. A few numbers here and there is nothing. Plus, the units often match nearly identically. But, for graphs and checking over hours, days and weeks, they are for the most part, the same. Not any jumps, or differences like that.I would prefer the carbon dioxide to be measured every minute.In the Switch Bot application, while in battery power it even offers to go more frequent in the measurements, down to seconds. Though it recommends against it due to possible heat that may affect readings.For less than half of the price of the Aranet 4 and basically near equal performance, I think this is a good option. I do not however know about the longevity of the product. But, customer service was great. No questions asked. Money back.I did just discover the situation about the unit only working for me consistently on battery power after they contacted me. So, I waited for the money to clear before writing this update. I get to keep the unit.I like it. Mine, just was not working correctly while plugged in.I think itâs personal preference and how much you want to spend. In my opinion there is basically zero difference between this Switch Bot and the Aranet 4. The Aranet 4 is smaller, and on battery power can measure carbon dioxide once a minute. But, that is not big factor for many. Still, important for some. My plan was to use a little external battery pack to get the one minute readings. But, in general most people donât need readings every minute. I donât. So, super happy.Thank you, Switch Bot.Update: #3 Showing a comparison of three devices. One only tests humidity and temperature. The white background photographs are the Aranet 4. The Aranet 4 is the best application by far. It can go in landscape and can be zoomed-in on.The examples show the accuracy of the device with humidity and carbon dioxide. Also, the zooming-in is a nice feature. But, it is not necessary and not very relevant to many.The tracking over time is basically the same as the Aranet 4, and that device is a lot more.The nicer application of the Aranet 4 is great. But, I donât know if itâs worth 3 times the price of the Switch Bot.Zero problems for me when running on battery power. No âfreezesâ of monitoring in a week. Plugged-in I would get random âfreezesâ any day or night, for hours or forever. A different Switch Bot may be fine.I personally would buy the one with the best application if I was rich. Iâm not.The application is the reason why I bought this device and it does what I need well enough. To monitor trends, changes over time, and to reference anything back to the data in the graphs.
Amazon Shopper –
Great item with good companion app
Nicely designed product with a solid companion app. The app allows you to download the raw data locally for personal analyzation. I left the meter plugged in (wasnât able to test battery life), and let it collect data points as I tested various methods of CO2 reduction. Accuracy is very close, and the size of the meter is small and not distracting. My only knock is that there is no backlit screen, thus making it impossible to read at night and even very bright rooms due to reflection.
Dexter Bertsch –
Great performance but with some connectivity issues
I bought this before I realized a newer version was available and maybe I should have waited.The device itself seems to be working well so far, though I don’t have another CO2 meter to test it’s accuracy. I absolutely love the ability to check the meter from the mobile app on my phone, however there have been several occasions that I’ve lost connectivity to the device for no noticeable reason hence the 1 star deduction. Regardless, it’s solid performance and cheap price still make this an easy to recommend product.
EvoFusionHQ –
I love SwitchBot!
The SwitchBot Meter Pro CO2 Indoor Air Quality Monitor is an excellent tool for maintaining a healthy environment. Its 5-in-1 functionality provides real-time CO2 readings alongside temperature, humidity, and more, making it versatile for home or office use. The large display is easy to read, and the Bluetooth connectivity ensures seamless data tracking with 2-year data storage to monitor trends over time. This will save my home from potentially health issues.I paired it with the SwitchBot 4-in-1 Air Purifier, and they work perfectly together. The purifierâs H13 HEPA filter and aromatherapy feature not only improve air quality but also create a pleasant atmosphere. Its RGB lighting adds a stylish touch, and the combination ensures I can monitor and purify the air simultaneously. This duo is a fantastic investment for anyone prioritizing health and comfort.
Danko Jevtovic –
Home Assistant
Works with Home Assistant
Teddy C. –
Great indoor CO2 monitor. Lets you know when you should open your windows.
Definitely is a good indicator for indoor air quality. Highly recommend this for folks who prefer to keep their windows mostly shut. Being within the switchbot eco-system means you could also program automated tasks for smart plugs or switches to increase airflow when CO2 builds up.
Anish K. –
Value for money NDIR CO2 Monitor
$69 with a 30% off coupon is a great price! They used the industry’s best NIDR sensor for CO2 readings. I donât have a Hub, but the setup is simple. I added it to Home Assistant via Bluetooth, and it works perfectly.I am comparing it to the Aranet4 for accuracy, and the readings are similar, with less than a 50 ppm difference between them. I have included a comparison graph for your reference; the yellow line represents the Switch Bot, while the blue line represents the Aranet4.The only downside is that when running on battery, the CO2 reading is recorded every 30 minutes, but when plugged in with a USB-C power cable, the readings occur much more frequently.Overall, I am happy with my purchase and plan to buy more units for each bedroom.
Pedro –
Déjà adepte des produits Switchbot, je possède pas mal de leur produit (thermomètre, hub, télécommande, aspirateur…).Et je ne suis encore une fois pas déçu par celui-ci : l’installation et la configuration s’est faite en 30 secondes environ : on retire la languette en plastique qui coupe l’alimentation des piles de type LR6 (fournies !), on lance la recherche via l’appli, on appuie sur le bouton de l’appareil 2 secondes et…. c’est tout. Pensez à activer le bluetooth de votre téléphone avant par contre.L’heure se synchronise toute seule quelques minutes après. Il y a une option dans les réglages pour activer ou non la synchro automatique, ainsi que l’affichage en mode 24h.Vous pouvez choisir une autre source pour l’affichage de la température / humidité si vous avez d’autres thermomètres de la marque, mais aussi la température extérieure. Pour cette dernière, il faudra tout d’abord vous rendre dans les paramètres de votre maison et renseigner votre adresse.La mise à jour des données est réglables en fonction de vos besoins, sachant que plus la fréquence de mise à jour est élevée, moins la batterie tiendra longtemps.Pour le CO2, c’est 30 minutes sur batterie, ni plus ni moins.Vous avez cependant la possibilité de brancher l’appareil avec un câble USB-C, fourni lui aussi. Attention à ne pas le perdre, car l’emplacement pour le brancher ne permet pas d’utiliser une fiche trop longue et donc certains câbles pourraient ne pas être utilisables.Et dans le cas d’un branchement par câble on peut tomber à une fréquence pour le CO2 de 1 minute.L’écran présente toutes les données de manière claire et exhaustive : Prévisions météo, heure, date (au format mois/jour, une petite amélioration en vue pour les français), mesure de CO2 et son niveau (mauvais, moyen, bon), la température, l’humidité et le niveau de confort (sec, confort, humide). Les valeurs de ces niveaux sont réglables dans les paramètres de l’application.Concernant celles-ci, elles donnent accès à un nombre de données assez impressionant, et vous pourrez retrouver l’historique des derniers jours, mois, années.Pour positionner l’appareil, 2 possibilités : posé sur une table, la béquille offre 2 positions, 90° et environ 45°. Sinon via un trou pour le suspendre à une vis. Contrairement à ses habitudes, Switchbot n’a pas inclus de double face 3M. Mais bon il ne tient qu’à vous d’essayer.Un dernier point concernant l’intégration avec les systèmes Smart Home. Il vous faut obligatoirement un Hub de la marque pour communiquer avec les différents assistants via Internet.J’en utilise 3 : Google Home, Alexa, et Home Assistant.- Google Home : aucun souci, mes comptes était déjà liés, l’appareil a été automatiquement ajouté. Il remonte bien les 3 infos principales: température, humidité, CO2- Alexa : pour le coup, j’ai un appareil Alexa depuis peu, c”est la 1ère fois que je l’utilisais, je l’ai fait uniquement pour les besoins de cet avis, et franchement c’est pas fou. L’association des comptes est plutôt simple, en revanche, les infos remontées sont… pauvres : seulement la température. J’ai pu regarder un peu le reste des appareils que j’avais déjà et c’est pareil pour tout : seulement la température. Le détecteur de fuite d’eau ? son statut est “fermé”. Faudra m’expliquer ce que ça veut dire exactement, Google, lui, m’indique bien “Pas de fuite”. Bref, je n’utilisais pas Alexa, et je vais continuer.- Home Assistant : toujours un peu plus compliqué car c’est beaucoup moins facile d’accès, mais Switchbot fournissant une API et y ayant très récemment ajouté le Meter Pro CO2, il ne m’a pas fallu longtemps pour l’intégrer à Home Assistant. Très content de la rapidité et efficacité de Switchbot sur ce coup, ce qui n’est pas toujours le cas.En résumé : c’est quand même un peu cher, mais la qualité et la simplicité est au rendez-vous, comme toujours !!
Nathalie –
Parfait
Frank –
Works great. In SwitchBot app you can see the history of all data.
Tagir –
good and exact
Gustav –
Seems to be accurate, looks nice and has a good app which is tracking the data.