Qingping Air Quality Monitor (Generation 2) Review - Is it Even Better?

Originally published at: Qingping Air Quality Monitor (Generation 2) Review - Is it Even Better?

This is a review of the Qingping Air Quality Monitor Generation 2. My review of the Generation 1 Qingping Air Quality Monitor is here. I was impressed when I first reviewed the previous version of the Qingping Air Quality Monitor. For $129, Qingping had somehow created an indoor air quality monitor that combined good components with an exceptional touch screen, making it probably the most pleasant monitor to interact with and use that I’ve featured on this website so far. When I found out Qingping released an updated monitor, I was astonished and excited. My surprise stemmed from seeing Qingping…

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Further thoughts on the Qingping AQM Gen 2:

15 posts were split to a new topic: Qingping Air Quality Monitor Gen 2 First Thoughts

I just purchased mine about a month ago and like it a lot, except for the abysmal battery longevity. The review says 4 to 6 hours but we’re lucky if we get 1 hour without a charge, meaning it pretty much needs to be charged continuously which will eventually damage the battery and render the monitor useless .

At the time when I reviewed the device, I found the battery life to be far from great, but acceptable (I said in my review that it lasts a ‘few’ hours, and I found it to last around 3). However, I can say that the battery life has significantly dropped since then, and I will need to update my review.

I still think it’s a fantastic device, but you’re right - the poor battery life is bad from the get-go, and it’s likely the battery won’t last at all after the device has been plugged in constantly for a while.

Many thanks for such a detailed review!
The CO2 log looks promising. But what about the CO2 sensor autocalibration? Have you discovered anything about it?

This (and the dataseet) looks like Sensirion SCD40 allows “ASC” either enabled or disabled (default=enabled), period=weekly, and this setting could be easily changed. But the Qingping CGS2 Air Monitor User Manual only mentions that there’s a “Calibrate CO2 Reading Manually” option, without saying anything about the automatic calibration.

You’re welcome! I’m glad you found it useful.

The Qingping Air Quality Monitor Gen 2 allows the user to disable automatic calibration on the monitor or the Qingping+ app. Interestingly, I can’t find a toggle on the Qingping IoT app. But anyway, yes, it does allow the user to enable or disable automatic calibration and manually calibrate the device when needed.

Interestingly, the automatic calibration period can not be changed, and I’m unsure what it’s set to on this device. I would guess it’s left as the default 7 days, but it’s possible that Qingping changed it.

I believe all Qinging devices allow you to disable automatic calibration which is fantastic. It would be even better if they would allow us to adjust the calibration period, too!

Very useful review. I bought 2 Qingping Air Quality Monitor Generation 2 monitors before Christmas. Connecting to Wifi was fine but connecting to the app was a challenge - had 5 minutes of waiting before the device would connect. Once I did I was able to update the firmware and much easier the second time.

Having been pleased with the monitors I bought a 3rd one in the new year. However while it connected fine to wifi, it just wouldn’t connect to the app - I waited 30 minutes with a “I’m processing” spinning circle before giving up. Tried multiple times on different days and even re-booted the device.

Unable to update the firmware on the device - despite the wifi connection.

I connected their support and they told me that certain API calls the device was making were to now defunct servers - hence the wait. I explained I waited 30 minutes but they could offer no further advice.

I was tempted to just use the device without firmware updates but I noticed a number of bugs - even in the few hours of use. It made it if not unusable certainly flakey.

With no way of updating the firmware I returned the device and won’t buy another till I’m sure it’ll work.

I suspect its luck - the first two I ordered from Amazon UK where white and I guess perhaps had a slightly newer firmware - which could with patience connect.

The 3rd was black and I guess had an older firmware which simply couldn’t update.

Colour probably a co-incidence - maybe they just sell more white ones and so newer stock and newer firmware.