Xiaomi Mijia Air Quality Tester Review (USB-C TVOC CO2 PM2.5 Temperature and Humidity Measurement)
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- เผยแพร่เมื่อ 6 ก.ย. 2019
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Just to be clear, CO2a is not the same as CO2, this device have no CO2 tester hardware, it uses some other gas testers to calculate possible CO2 value.
Sometimes CO2a can become incorrectly huge, and it needs to be calibrated time to time, this is done automatically by this device.
And if you turn it off for 24 hours, it will require you to wait about 4 hours to get itself recalibrated.
This CO2a tester is not so accurate as real CO2 testers, but good enough to understand that room required to be ventilated.
Yes I believe this is true, good explanation
IGHOR I have this air quality meter. I have been using it non stop for 1,5 years! Very nice quality.
I understand that you are looking for some air quality measurement for you workplace . I also facing some strange allergies since we moved to our new office. The only thing that come to my mind are carpts and the fact the there are other buildings constructions out side my office building. My recommendation to you is stay away from windows and air conditioners or work from home if possible. Take care and thanks for the review 🙏
Is there an audible alarm option/setting for PM2.5? Thanks for your answer.
Nope
It's nice that it has a pretty box and firmware updates, but it is VERY inaccurate for PM2.5, TVOC and CO2 when measured against a real reference meter. Your reviews are really good, keep up the good work!
Do you have some sources for Xiaomi devices measured against real reference meters? I am looking everywhere but can't seem to find it. I am almost exclusively interested in pm2.5 meassurements
Thomas Talhelm run Mi1, Mi2 and Mi2Pro against his tested reference devices (Laser Eggs, Air Visual Node and Dylos Pro) and found the PM2.5 measurements to be really off (real life situation it was off 100-200 ug in PM2.5):
smartairfilters.com/en/blog/xiaomi-particle-counter-inaccurate-not-control-purifier/
The best tests against each device itself (reliability) and against lab equipments I've found are at:
www.aqmd.gov/aq-spec/evaluations/summary-pm
The PurpleAir 2nd gen devices excel at both.
@@ama-tu-an-ki that's because the airpurifyer had a really cheap pm2.5 sensor
Bonjour, cette appareil est-il vraiment fiable ? Désolé je n'ai pas tout compris dans la vidéo parce que je suis français.
Merci pour votre aide
Hi,
Thanks for the video.
How long does it take to initialize on power on so that the CO2 values are reliable ?
Not sure exactly. I could give it 6-12 hours
Any other device you would recommend for the US market?
Not that I have personally tried
Is it possible to connect it with eg xiaomi wifi socket? So that it turns on the socket (fan), when the air quality is bad (cigarettes smoke in the room) ?
Not that I'm aware of but I don't have one of those plugs to test
Hello i have a problem it always show "initializing" for the TVOC sensor. the others snesors are good, have you got an idea to solve this problem ?
Look in the settings I belive you can clear this. It takes several hours to initiate
Hi Jon,
I have this device but when plugged in, after he gets fully charged and left plugged it actually starts getting discharged and the battery gets depleted. It's just my device doing that? Have you tested this? Thanks!
Mine stays full when plugged in, maybe try a different charger?
@@LiquidRetro I tried with 1A and 2A chargers. I think I have a faulty unit then :( . Thanks!
my lcd monitor was black and cannot use anymore after 1 year , do anyone know how to fix this
Would've been nice to know what level of amphibole asbestos particles were in the air before my lungs became rock.
I got this device, can anyone confirm that sometimes it has irritable noice from cooling fan or so?
I am pretty sure it contains no moving parts, so I would disagree
@@LiquidRetro I do hear that noice so there is some moving parts, I would like to know do I have defective device or it is the same in every other. So it is appears when it starts deep reanalyze, after it was turned off more than 24 hours. I think there is some fan that takes air inside.
That is an interesting device. Radiation tester? Could be useful.
That's what I was thinking, thanks for watching till the end.
it is possible to collect the information via usb?
Not that I am aware of. Usb is only for power
Is it possible to change the temperature from Fahrenheit to Celsius?
Yes absolutely
@@LiquidRetro Great! Thanks a lot!
Can this device connect to smart life app?
As far as I know only mi home
Is it possible to have a screen that shows out door air pollution compared to inside?
my goal is to have a device to show to customers our air in our store is better than outside
The device cannot connect to the application, it always writes me an invalid qr code. . .
I cant log in even after switching to China app location it says my QR code is invalid. FFs. Fml
Try refreshing the qr, they can timeout
What is going on with this device? Is it stopping selling?
I don't know mine is working pretty well still. Maybe a new model soon?
Bought this device. Battery lasts only a couple of hours ?!? Is this right??
Ya, that's right. It's really designed to NE plugged in all the time
I have this device and no way to sync it with Xiaomi home app. Device is not listed and QR code is not recognized. I've contacted Banggood and they did not solve my problem (but they refunded me some money for the inconvenience). Xiaomi assistance didn't solve my problem at all...
I talk about how to make it work in the video. Did you try that? You basically have to set your location in the app to China.
@@LiquidRetro , I've followed your suggestion, changed to Chinese location but when I try to scan the QR code, the xiaomi app tells me "impossible to identidy QR code". I've tried to re-generate it many tiimes but no way to sync it. My firmware is 3.5.4_0091. Any alternative idea/suggestion? Thanks in advance for your help!
Same problem :/
I same this problem. My device is not generate QR code for sync with mi apps. And my device software same your version ,i think it cause of problem.
Clear cache and uninstall the app.
Reboot the phone
Install the app
Select China and the app will automatically re-open with different GUI.
Next on the device select China random city and make reboot on the device.
After starting try to generate QR code.
Open the app and go to manual add device
Find your model and select
Then try to read the QR code
No pm10?
Correct
wheres the product key
just bought it online cant find any 12 digit number anywhere..do i have the wrong app
Sounds like you may have the wrong app, I didn't have to enter a product key
jq 200
@@jantilger5171 not sure what you mean. Best of luck
Never connect this to a private network. Especially at work. This is a back door into your network
Have any proof of this?