INKBIRDPLUS 6-in-1 Indoor Air Quality Monitor, Detects CO2, PM2.5, PM10, AQI, Temperature and Humidity for Rooms, Cellars, Grow Tents, Offices, etc. (PTH-9A)

I'm very impressed with this air quality monitor. First of all it feels like it's very high quality. It does not feel or look cheap. I can tell a lot of thought went into the design. Setup was basically one button and it was ready to go, already fully charged. The display is straightforward and very crisp, bright, and easy to use. It's also accurate and the reading update instantly real time. The alarm feature is also a big plus because I put this in my garage man cave and I'll still be able to hear the alarm from other parts of the house. I also love how portable it is and how you can hand it on a wall. I highly recommend this!

This air quality monitor works well, with nice clear and bright display. And the readings are very close to my IQAir AirVisual and AirGradient monitors. Very simple to setup and calibrates CO2 easily. Great for any room in the house to display air quality. Reasonable price and I purchased two of them. I've been through a few air quality monitors and InkBird has been a real good and accurate product. Plus, InkBird support responds quickly for any questions or technical issues.

Works good, may be a little to sensitive for a kitchen setting. Display is nice and bright. Oversll, decent product.

I had such high hopes for this product.. and with the reviews that I read before I thought this is a pretty good one. It didn't even last 30 days before it just stopped turning on. Tried to charge it. Tried to charge it with different cords. It just will not turn back on. I do not recommend this product

I've been using this in my home for a couple of weeks and it works very well for me. We have our windows open almost every day and I bought this to see how the air quality is when we have nearby wildfires. Luckily there haven't been any this year but when it does happen I will update my review. So far I have noticed that the AQI and ppm readings are low at night and go up as the wind picks up during the day. On the rare days we close the windows to run AC, the CO2 readings are higher. The screen is clear and has nice colors. There is an alarm function to alert you to poor air quality. It has an internal battery which seems to run the device for about day but it is designed to be plugged in most of the time.

Either I have a spectacularly clean home and nearly perfect air quality or this thing is not very useful for PMs It was charged up and calibrated outdoors and when finished after the 200 second countdown, turned itself back on and showed 008 on the PMs and 405 on CO2, which is pretty standard for outdoors according to the internet. Back inside the house.... So far it has not flashed above 005 on PM10 and not above 003 on PM2.5 and those were for just a fraction of a second. Even waving dusty things around it only causes it to flash at those levels for a moment occasionally and very briefly like not even a full second before it drops down again. Took it down to the basement of my 1922 house, which is unfinished and extremely dusty. Nothing changed. Shook a clothing item that had been hanging down there a while and nothing changed on the PM numbers same fluctuation from 002 to 004 and back down. The CO2 monitor definitely works. On the first floor the CO2 hovered in the mid 400s. In main part of basement the CO2 went up to about 550-600. I heard the furnace (a gas fired hot water boiler from 1956!!) kick on while I was down there so I took it into that room and held it a couple feet from furnace while it was firing. The PMs did not change but the CO2 started to climb to about 700+. Went back out into main basement area and CO2 kept climbing to about 775 and then started to drop back down to about 600. Went back up to 1st floor and it continued to drop back down. Overall I don't know if I trust the PM monitor part of this device or I just happen to have excellent air quality. Judging by the amount of dust on surfaces and floors that is regularly cleaned up, I would be surprised if the PMs were so low in the air. I am suspicious because I also have an air purifier with auto AQI and that thing will kick into high mode if I just pick up a throw blanket off the sofa and start to fold it not even shaking it out in the air. In the basement it will kick in if you simply walk past it! This thing never registered above 005 no matter what I did inside the house.

Got this air quality sensor and I’m pretty happy with it. Setup was simple—clear instructions made it easy to get the time right and run the calibration. Once it's going, it gives you a solid range of info: AQI, CO2 levels, temp, humidity, and particulate counts. It’s surprisingly responsive too—you’ll see the numbers shift in real time if something changes in the air. Battery life isn’t super long—lasts a few days—but if you keep it plugged in like I do, that’s not really an issue. Overall, solid little device for keeping tabs on what you're breathing.

I’ve been using this air quality monitor mainly to keep an eye on air quality while 3D printing, and it’s been really solid so far. Setup was quick, basically turn on and good to go. and the display is bright, clear, and easy to read from across the room. It tracks CO2, PM2.5, PM10, and overall AQI, which is super helpful to see how things change during and after a print. The readings seem accurate and respond quickly when the printer starts running or when I open a window for ventilation. It’s nice having actual data instead of just guessing if the air’s getting stuffy or dusty. For anyone doing a lot of 3D printing or working in a small workshop, this little monitor gives some good peace of mind. Big plus it has USB-C charging port!

Accurate, very useful, especially the alarm function when air quality drops rapidly.

Battery died within a month. The fact that this item got a 3.8 star average review is telling. Most reviewers give a big benefit of the doubt so average review is usually above 4.5. That said, everything else I bought from Inkbird (sous vide, thermometers) are perfect.

why did i buy this: i do a lot of WFH and realized i get too tired and exhausted after just a hour. Dk why i bought this and found out that CO2 accumulation was way outta normal levels in my room due to poor ventilation. now i remedied the CO2 issue and also found out that my DIY air purifier works really well. normal AQI is around 70-80 normally in my region. Features and good experience with this product : built in battery lasts for a day but this device is designed to be connected to power at all times. CO2 measurement can be calibrated and is set to off by default built like a brick which i honestly did not expect measurements respond pretty fast to changes which i really appreciate. has a smoke alarm kinda feature where if AQI crosses 100 it beeps. looks nice in my room. The cons and bad experience. backlight is not bright enough experienced a glitch where CO2 ppm was stuck at 500 had to reset the device i wish it lasted atleast for months before charging if there is bad ventilation temperature reading is unreliable Something i want to say: i read a lot of reviews before buying this product and it seems like the seller is listening to feedback and fixing a lot of issues users experienced my experience till date is almost flawless except the problems mentioned above. which is also something i didnt expect. i expect this thing to last atleast 3 years or so and if it fails i will update my review as this one is not cheap at all atleast for me. overall i can confidently recommend this product if you can accept the shortcomings mentioned above

ممتاز

The charger does not work at all well! I have replaced 2 and neither would charge properly. Since one cannot use batteries, charging is the only way to use it. Finally the price is far too high for something that does not work well!!