This is decent. It works as described. I haven't been able to use the app at all because the directions were unclear. It works without the app. It does let me know when the air in the house is bad. Most of the time, though, it beeps because the house is too hot. We would then open the door for 15-30 minutes, and the numbers would go back to normal.
It is battery-powered with a USB-C charging port. The battery lasts a long time; I believe it was for a little over a month before I had to charge it. It also came precharged, so I didn't have to plug it in for long.
It is a nice device to have, especially if you live somewhere with air quality issues. Even though you can't use the app, I still recommend this.
TheDogsCar
★★★★★
Portable CO2, Temperature, and Humidity
Real simple to set up. Charge it with the included cord, download the App, Turn it On and Pair it. The App is pretty simple (see pic). I Like: it has a Rechargeable Battery; no batteries dying, when you need them. It has an LCD Display; saves on having to recharge it. It has a CO2 Alarm; beeps if levels get too high. I Dislike: It is not Wi-Fi; I cannot integrate it into my Smart House. Wish it came with a Travel Bag. For the Price, it is a good buy, and may save your life.
G
Gabe
★★★★★
Useful
【Air Quality Monitor】The IAM-T2 3-in-1 indoor air quality monitor can monitor carbon dioxide concentration, temperature and humidity changes in real time through the backlit LCD screen
【BLUETOOTH 5.0】This Portable Air Quality Monitor can seamlessly connect with your mobile phone within an unobstructed range of 100 meters. You only need to open the mobile phone APP to check the current air quality at any time
【LONG-LASTING BATTERY LIFE】The Air Quality Monitor Ndir has a built-in 3000 mAh lithium battery. This Air Quality detector can be fully charged in about 6 hours and can be used continuously for more than 6 months after a full charge
【INTELLING DATA MANAGEMENT】The IAM-T2 battery powered Air Quality Monitor can save 30 days of offline data, and the mobile APP supports long-term data storage and export for one year.
【DUAL ALARM SYSTEM】Smart Air Quality Monitor has a sound and indicator dual alarm system, green light indicates good air quality, yellow light indicates medium level, and red light warns unhealthy.
【PORTABLE SAFETY GUARD】Indoor Air Quality Monitor ndir can be placed upright on the desktop or hung on the wall. It is flexible and portable and suitable for any indoor environment.
R
Rich
★★★★★
Accurate and convenient air quality monitor for everyday use
I purchased the INKBIRD Bluetooth Air Quality Monitor to keep track of CO2 levels, temperature, and humidity in my home and workspace. This portable NDIR detector features a clear digital display, Bluetooth connectivity to the companion app, and battery power, making it suitable for home, office, RV, or grow tent environments.
Setup was simple. The device powered on quickly, connected to my phone without issues, and began providing real-time readings. The CO2 measurements appear consistent and responsive when ventilation changes, while the temperature and humidity values align well with other gauges I own. The app stores historical data and allows customizable alerts, which has been helpful for maintaining better indoor air quality. The compact size and built-in handle make it easy to move between rooms.
Battery life has been solid so far, and the overall build feels reliable. This monitor has given me clear insight into my indoor environment and helped me improve ventilation habits. Highly recommend it for anyone wanting an accurate, user-friendly CO2 and climate tracker.
H
helimech101
★★★★★
Useful Portable Monitor with Excellent Battery Life and Detailed Data Logging
I've been carrying this monitor with me for several days, and I've found it much more useful than I initially expected. Rather than only showing the current conditions, it keeps a history of CO2, temperature, and humidity measurements that I can review later in the app. This has allowed me to see how all three change throughout the different environments I'm in during the day.
The monitor itself displays the current CO2 level, temperature, humidity, and battery level on its backlit screen. It is small enough that I've simply been carrying it with me, and the built-in handle also works as a stand.
Setup with the INKBIRD app was straightforward. The interface is intuitive and makes the historical information particularly useful. I can select CO2, temperature, or humidity and view graphs showing how the measurement changed over time along with the average, minimum, and maximum readings. I even forgot the monitor one day, so it was away from my phone for an extended period. When they were together again and I opened the app, the monitor automatically synced the data it had collected while disconnected. I didn't lose that portion of the history.
Battery life has also been excellent so far. I turned it on when I received it and have been using it continuously for several days without charging it, and it still has roughly 60% of its battery remaining.
I don't have a calibrated CO2 reference instrument available to independently verify the specified accuracy, so I can't make a quantitative claim about measurement accuracy. However, the readings have changed in ways that appear consistent with the different environments I've taken it into.
Overall, I like this monitor quite a bit. The combination of portability, long battery life, an easy-to-read local display, Bluetooth connectivity, and especially the historical data logging makes it considerably more useful to me than a monitor that only displays current conditions.
M
Magicmoose
★★★★★
INKBIRD Bluetooth Air Quality Monitor Indoor Ndir Detector for CO2 & Temperature & Humidity
Quality: Excellent quality!
Compact, well designed, easy to use, and easy to read display!
Installation: Very easy to install and setup!
The device itself has a kickstand and an on and off switch in the back of the unit.
Fit: Fits perfectly on a desk or even in a bag!
This device is about the size of a iPhone X and will easy fit anywhere.
Function: The monitor works very well!
I wasn't convinced this was going to be that accurate so I breathed directly near it and the CO2 does go up quite a bit. Humidity I walked this into a recent shower room and the humidity jumped as expected. The monitor works on an interval like 1 or 10 min updates which prolongs battery life. I didn't try the app as I have no need to track useless data about my air lol.
Weight: Weighs about a quarter pound.
Value: Excellent value!
The device doesn't just work but it works well. I confirmed some of it's results using real world tests and a different competitor device that is known for accuracy and this device was dead on! Highly recommended!
Anand T.
★★★★★
Easy to setup and Bluetooth app support
This CO2 meter is easy to setup - just charge it and turn it on. It charges over a USB type C port and includes a short charging cable. The meter reads the CO2 level, temperature, and humidity. I tried putting the meter in a bag and taking some deep breathes in and out of it to raise the CO2 level and after about a minute it started alarming and continued alarming for around a minute or so.
It has a built in stand to either sit it on a table top or use for hanging on a wall.
You can optionally connect it to the Inkbird app on your phone over a Bluetooth connection and through the app there are some options you can change like the thresholds for alerting and turning the buzzer on and off.
The only minor annoyance I found is that there is a pretty bright flashing LED on the front and I didn't see a way to turn it off from the device or the app. If you're thinking of putting this in your bedroom that'd be something to consider.
S
Steven
★★★★★
Easy setup CO2 monitor that works with Home Assistant
Compact battery powered sensor that tracks CO2, temperature, and humidity in one unit. The battery life is long, charges via USB-C, and the wifi connection stays stable without dropping, which is the main thing you want from a sensor you are going to leave somewhere and forget about.
Setup through the Inkbird app was quick. Hit the plus icon, select your device, follow the prompts and it is running in under a minute. Inkbird's app is straightforward and allows for calibration and changing alarm settings.
Works well with Home Assistant which is the main reason I picked this one over similar monitors. At this price point it is also a fun way to show kids how CO2 levels change in a room when more people are in it, or how plants affect air quality in a garden. Makes an otherwise invisible thing visible and easy to understand.
B
bamabob
★★★★★
Quality Product, Easy Connection
Inkbird is a brand I trust. I own a couple of their thermometers and they have been very accurate and reliable over the years. I expect the same from this Air Quality Monitor.
Came with almost a full charge, since I already had the Inkbird app on my phone I had it connected to Bluetooth and up and running in less than a minute.
Very straightforward and intuitive: just hit the + icon in the app to add a new device, choose your product and follow the prompts.
While it isn't necessary to connect to Bluetooth since the freestanding unit has a full display, it can be handy for checking remotely as I will do since this will be in a guest bedroom.
Only downside is the flashing indicator which can be quite bright in a dark room. Easily fixed with a piece of tape to cover it.
App allows for calibration of unit and setting alarm threshold.
G
Ground Loop Garage
★★★★★
Not too bad if you don't need Bluetooth.
Nice little device, but.... Well this device does almost everything I wanted. It displays the temperature, humidity and CO2 concentration in the air where the device sits. That's great, but I was also hoping that the Bluetooth would also work...
When you power this device up with the switch located at the rear screen displays the percentage of battery remaining on a little Icon, and after a while and several samples the temperature, humidity and the percentage of CO2 located in the room. Notice, I said CO2 (carbon dioxide) NOT CO (carbon monoxide). This is very important, one won't hurt you, the other can kill you. If you are looking for a carbon monoxide detector, this isn't it!
I originally got this for my wife's greenhouse because I was hoping to be able to read the results remotely via Bluetooth. The device states you can turn on the Bluetooth function by pressing a small button on the right side of the device. Well, there is no button located where shown. Maybe I misunderstood the drawing, but it does show a large button with a small button beneath (it's not there!).
That aside, the device shows does display the CO2 concentration, the temperature and the humidity levels where the device is placed. You can switch between degrees F and degrees C by depressing the large button one the side to switch modes. Once the device is running and stabilized, every 5 seconds or so the sample light flashes and the display updates with the conditions in the room. A single press on the large button turns on the backlight so the display can be read at night. Additional things displayed on the unit is battery level via a battery icon, and a speaker to show the status of the alarm feature.
You must download their application for your phone, which is unfortunately becoming more and more popular in order to use devices. I personally do not like having to download random software to my phone just to use a device, bit that is a decision you need to make. The unit can be charged via the included USB to USBC cable. The manufacturer claims that the unit will run for approximately 6 months on a 5 hour charge. This is nice that you don't have to constantly charge the internal battery to use the device.
I've given this device only 3 stars for several reasons. First the instructions clearly tell you to press a button that obviously don't exist. Second the point I made earlier about having to load specialized unknown software to my phone. I would be more inclined to load a program and create an account if the program originated in the United States, but it does not.
Bottom line is this, it works great as an air quality measuring device all by itself. The price isn't bad for a device you only have to charge twice a year. It would have been nice if it worked remotely, but that never occurred. So use your judgement and proceed how you wish.
L
Largo man
★★★★★
Great sensor,
I’ve had this since November. Great device. It’s really eye opening about how quickly indoor air quality can drop. Really good sensor on this. The app works well but could be better. It’s a bit inconsistent with live data readings from the app, but if you go to the data tab, you can see everything graphed out. Battery life is great. It’s a bit picky with chargers, it doesn’t like high wattage usb-c, it works best with older USB-A chargers (it comes with a cable but iirc). It’s compact and has a backlit screen (it’s normally off to conserve battery)
I originally got it for my indoor garden to see co2 levels. Realized there is 0 need to supplement in an occupied house lol.
I got it for $45 but it looks like the price has almost doubled, still a good deal in my opinion. The sensor in this thing blows my $220 X8s thermostat’s out of the water.
Things make so much sense now. Those days where i wake up feeling extra groggy with a headache and see that the co2 is over 1400ppm make so much sense now.
Farmedfrags
★★★★★
App works flawlessly with the monitor
Item seems like good quality, humidity and co2 was expected. Using it for co2 and humidity control. Love that it works with an app. It also lets you know if the air quality is bad with the led color indicator
E
Erica & Michele
★★★★★
Best Portable Air Quality monitor
So GLAD I got this. We bought this for our camper and it ended up alerting us to a leak in our gas line ! I initially purchased for humidity control as we live in super humid climate. While camping during a chilly spell it alerted us with a red light and flashing that the CO2 was 1410 !!! Our fitting on our gas line to the heater was leaking and we wouldn’t have known without this. It’s accurate, has a great battery life and totally saved the day.
I.H.
★★★★★
Works as it should
Does what it's supposed to.
I compared to a more expensive CO2 monitor I have and it's pretty much giving me identical readings. Can be controlled and viewed with the app as well which is nice.
Z
Zolakk
★★★★★
Handy little device for monitoring CO2, temperature, and humidity
I've been using this for a week and it's been pretty enlightening how the CO2 levels in various areas of my house are during the day and how I feel. I've mostly been keeping in my office where I spend most of my time during the day and it's been helpful with not only the CO2 levels but also temperature and humidity. The temperature and humidity seem to be accurate from what I was able to measure with other devices as well. I tested the alarm and green/yellow/red by putting it in a small box and breathing into it showed me that it does seem to work well for that measurement as well, alarming as I expected it to. It also has an "auto calibration" feature, which sounds nice but it's not explained in the manual aside from what the icon on the screen means. It would be good to have a bit more explanation on how that works and/or a mention that it's an option that's off by default in the app either in the app or in the listing plus what if any battery life cost it may have being on.
It came out of the box charged and ready to go and with the default 1 minute sampling time, I still have most of the battery left after about a week so I think the advertised approximate 60 days at that setting will be pretty accurate. Pairing with the app was a breeze as well, stepping through the wizard had no problems and I was up and running. It's nice that the app also gives you the option to see the data on a chart as well as allows exporting to csv if you want for any or all sensors and for a given timeframe. The sensor also does well holding onto the data when your phone is not present and syncing when it is and the app is open.
I think this will also come in handy when we go tent camping as well since we have a fairly small tent. It's going to be a while before I can test that, but I look forward to seeing how it works in that environment.
The manual only lists an upper operating temperature limit of 122F / 50C so I also tested it in my kegerator (about 38F / ~3C) thinking an alternate use could be to warn about those pesky CO2 line leaks that can crop up from time to time. In that environment, I had no issues getting signal from over 30 feet away with the door closed but I didn't test for very long just in case that lower temperature is problematic. It would be nice to get official word on the lower operating threshold as I think this could be an excellent use case in the home brewing community if it can indeed run ok in that kind of environment.
The only issue I noticed is that even though it charges over a USB-C connector, it seemed to only charge with a USB-C to USB-A cable and a traditional charger. It did not recognize any of my USB-C to USB-C chargers and cables so I don't know if it's a design flaw or my chargers (they all work with my phone and are 2 amp or higher). The manual only says "DC5V/1A with USB Type C charging cable". That's a pretty minor issue though in my opinion.
Z
Zach
★★★★★
CO2 monitor
This co2 monitor is easy to connect with and tells you a lot about the air quality in your house. The app function is nice to so it can be seen from your house
P
Peter Pumpkin Eater
★★★★★
who would have thought?
I ordered this product because I wanted to keep track of temperature and humidity throughout my home. I saw a lot of reviews talking about the CO2 levels. I didn't know there was any reason to keep track of CO2 levels. Carbon Monoxide, CO, yes. That is dangerous, can be deadly, and I have CO monitors throughout my home.
I did some research and found that CO2 levels can have an impact on cognition, ability to reason and solve problems, and ability to function. Who Would have thought it would be important?
The meter has been easy to learn to use. It is compact and lightweight, easy to read. The battery has lasted for a long time so far with one 12 hour charge. The product comes with a short (maybe 1-2 feet) USB to USB-C charger, but no charging block.
It has Bluetooth capabilities, so one can read the results on one's phone when one is near the meter. As with all Bluetooth, it does not work across long distances, so if one wants to use this function, the meter needs to be close to the electronic using the Bluetooth.
As far as air quality meters, this is a basic model and consequently has a lower price tag. The price is reasonable compared to other similar models with the same functions.
Meet.the.Mascios
★★★★★
Peace of Mind with Great Features!
This monitor gives me peace of mind by keeping tabs on CO2 levels, plus it’s nice that it also tracks temperature and humidity. The long-lasting battery (over 6 months on a single charge!) means no constant plugging in, and its portable, stand-alone design makes it easy to move around. The color-coded lights (green, yellow, red) clearly show if levels are concerning, and Bluetooth connectivity lets me check real-time data on my phone. Highly recommend for anyone wanting a simple, reliable air quality monitor!
G
G Man
★★★★★
Good CO2 Monitor
I really like this CO2 monitor. It's easy to setup and use. It has good battery life. It's portable and also displays temperature and humidity. The app makes it convenient to use.
pc
★★★★★
Easy Setup and Accurate Readings
Setup was easy, and the measurements were pretty accurate. I tested it both indoors and outdoors—outdoor CO2 levels matched what I found online, and the humidity reading lined up with the weather forecast. My husband and I were so surprised to find out how high our indoor CO2 levels were 😂 Really glad we got this little device—it’s super helpful!
J
Jack...the engineer
★★★★★
As accurate as one over double the price. *Can’t recommend though until they fix odd pairing issue
Rating summary - 3 out of 5 stars (would be 5 out of 5)
*I have 3 awair elements + an aranet4 CO2 monitor that I am compared the CO2 readings to.
The good:
-It costs less than half as much as one that has similar features and similar accuracy (It essentially has the same features as the aranet4 but slightly less accurate)
-The backlit screen is so helpful (and the aranet4 CO2 sensor not having one has been a drag)
-Bluetooth 5.0 (definitely a huge connectivity improvement vs older Bluetooth versions)
-customizable alert limits for both CO2 and temperature which is really cool which if the app is left open in the background it will send you alerts if one of the limits is reached.
-the app is pretty simple and straight forward. It is intuitive to navigate to make sure you take advantage of all of the useful features of the device too.
-battery life is exceptional. It says it lasts up to 6 months depending on sensor refresh rate. For the two months I have been using it, at a fairly high refresh rate (higher than most other sensors out there), this battery life expectancy tracks.
-the device itself is sleek and seems to be built robustly (no loose parts or any noises when slightly shaking it). It also has the hanger that doubles as a kickstand which is nice. When not in use it folds back along the outer edge of the device and is flush with the outer case too.
Minor annoyances:
-They require an account to be created to use the app/bluetooth data logging feature.
-It blinks green/yellow/red for the different readings (green = good, yellow = above upper warning limit, red = above upper reject limit).
set up for the app. I have not found out how to turn off the blinking light yet. For most people I am guessing it wouldn’t bother them but I am a very light sleeper and even changing in lighting with moving shadows cast inside my bedroom will sometimes wake me up or prevent me from falling asleep.
-This model does not have its own online user manual on their website and seems to be a “variant” of some of their other devices.
*Not sure if this has something to do with the software bug issues with pairing to a second phone that I am seeing (e.g. they released this variant of a product to be sold at a lower price point to compete with other companies low price options and they haven’t fully caught up to all of the supporting documentation being written and then posted online)? More on that below
The bad -
-Just went to connect it to a different phone (new one I am going to use) and it will not allow it to pair to the new device after following all of the directions in the manual and online.
****important to note - you do not need to pair it to your phone to still get any use out of the device as it will still generate CO2 concentration readings for you that you can use to drive actions that improve your air quality and reduce the CO2 levels in the space that you are in
-I am working with their support resources to resolve the issue but it is slow going. I will update the rating if the issue is resolved and I can connect the CO2 sensor to a new phone (one I get in the future).
Reasons to use a CO2 sensor -
Causation -
High CO2 levels have been directly linked to fatigue, feeling anxious, irritability, cognitive impairment (decision making), and even productivity….etc
Correlations (since high CO2 levels can be correlated to other negative aspects of the air in your environment) -
A CO2 sensor can reveal more information to you than just the “CO2” levels, for example since outdoor air is around 400 ppm CO2 you can correlate higher CO2 levels to other important factors of “air quality” because humans create CO2 and if the CO2 continues to rise and stays very elevated you can safely assume that there isn’t a lot of ventilation in the room/building that you are in.
*Why that is important - For most places in the world (not always the case for big cities or places that are downwind of areas that generate a lot of air pollution) this relationship of indoor air being worse than outdoor air (like for CO2 levels) is similar e.g. dust levels, pm2.5 and pm10 particulates…etc. So, in addition to the CO2 readings’ impact only from a CO2 standpoint you can use it to also assess your risk of exposure to other airborne particles in a give place:
Example 1…Again, indoor air quality is normally worse than outdoor air quality. *Data point for U.S. citizens = The EPA estimates that indoor air has 2 to 5 times the concentration of contaminants than outdoor air. So, maybe if your house or anywhere you are traveling has very high CO2 levels then, unless there are air purifiers/HVAC filters, you could safely assume that the dust/pm2.5 and pm10 particulate levels in that space are also relatively high and could be lowered with better ventilation. This can help improve allergy and other negative respiratory system symptoms. There are many online sources of outdoor air quality for places around the world in case you were curious.
Example 2…a high CO2 reading >1000 could mean that in a public room/building you are in (equals more human expelled gas) could contain more airborne viruses/bacteria if anyone that entered that place and was sick (the higher the value the higher the risk). Conversely, if the CO2 level was low and around 400-800 then you could assume that the ventilation of that space was good and there would be less possible airborne pathogens
