Qingping Air Quality Monitor Gen 2, Air Quality Monitor Indoor Detects PM2.5, CO2, PM10, Noise, Temperature and Humidity, New Upgraded Alarm Clock Function, Air Quality Tester for Bedroom, Smart Home

As nerdy as air can be, this feels like a complete end-user product. It is intuitive, informative, and I can get rich history trends, alerts, ranges and configuration without needing the app or janky smart home/IoT. (Unlike many other AQI options, which often don’t invest much in user experience, design, or even accuracy.) Super fast boot and responsive to setup, clearly well made software. The UI is thoughtfully made, with explanations/context on the different readings. Current and forecasted weather and current outdoor AQI readings do populate. (Outdoor (EPA) AQI forecasts are blank, but may be unavailable locally?) Battery is useful for popping it outside for calibration or taking it with you into a different space, but not a casually pocketable device.

Unquestionably better than airthings. Wow. If you’re trying to decide this is amazingly better in so many ways (except lacking radon). The display is awesome and functional and easy. It has alarms, it has air quality and weather and beautiful time clock. The settings are so easy to set up. The cartridge loads in back and is zero noise. And it turns off the screen during sleep hours. It’s very accurate and updates frequently. It’s easy and nice looking to be able to keep it plugged in, and can simply sit on a table or shelf. Beautiful design. Perfect for by the living room or bedroom.

This is a really nice air quality monitor. It feels sturdy and of good quality. So far, it’s accurate with our air purifier readings. Easy to initially set up, basically, plug in with your own power cube (cable included but no power source), turn it on, and it goes into sensing almost immediately. The manual is rather vague and gives no real details like how to change time to 12H, Temp from Celsius to Fahrenheit, etc. Some Googling did not help much, but exploring the screens and settings finally got me past that hump without any help from the manual. Speaking of the manual, it’s mostly in Chinese. Some information in back section in English. I would not suggest the QR Code for App in manual!!!!!. It’s terrible, tries to get you to onboard all home automation (which I was not going to do for this Chinese Company) and initially would not work except for in Chinese. Finally found the app to use from Amazon info. As “Qingping+”. That helped a lot. Able to check and change information for units by app or on the units very nice, sharp, and nice looking screens. Touch screen works beautifully.

First, I wanted to address most of the negative comments here regarding the screen no longer functioning or the backlight is dim. This device comes with a usb-c to usb-c cable and no charging adapter. USB-c is generally higher voltage. This device uses 5v 1a. So what I suspect is happening is that the device overheats because of the extra voltage used in usb-c adapters. Also, although the device manual indicates that you can leave it plugged in all the time, it probably does not have battery bypass. The work around is to use a smart plug and charge the device intermittently. I do this for old phones to display weather, etc. by creating a routine that turns the device on and waits then off and wait again. Lithium batteries can be charged many times but it's best to keep the battery level between 20-80%. The byproduct of constant charging is heat which will damage the battery. So those things should help the longevity of this device. The internal fan will also fail if the voltage is too high. With regard to accuracy and reviews showing 2 devices side by side with different values to imply this device is inaccurate. 1) you can offset the values to match any meter you perceive as being more accurate. 2) unless the device is in a controlled environment with a pre-measured amount of particulate, you will never get an identical number-why would you when you cannot account for the accuracy of the test environment? This is why temp and humidity are seemingly more accurate. That being said this device is very reactive and accurate. I have 2 analog hygrometers, 2 fans with controllers that have hygrometers, an Amazon air quality meter, and the thermostat on the wall. I have calibrated the analog meter by using salt like wet sand in a dish in a sealed bag. The meter is accurate when it's at 75% where evaporation is equal to absorption. This meter is right on the money and the same is true with temperature. So unless you're willing to spend about $15k for a "real" commercial certified air quality meter, this is about as good as it gets with some cool other features as well. The app works well on iPhone and I was even able to install a windows 10 version. Installing the sensor is simple. Research how to calibrate PM2.5 and other values before you decide about accuracy. I would recommend this device as it is reasonably priced and works very well. Amazon had a $24 coupon so I decided to get it and I’m glad I did. Update: Customer service is exceptional. They read my review and reached out and said the sensor causes heat (you can turn off the sensor in settings) and that the battery stops charging at 100%. However, in my opinion, it’s still receiving a trickle charge and you have constant charging while discharging. I would recommend a removable battery (they could charge extra for the optional battery) or a switch to stop charging. Also, i would recommend enclosing a charger and usb-A to usb-C cable and a warning not to use a quick charger or over 5v 1A because nobody pays attention to the input voltage even though the photos have a picture of the specifications.

Worked great for a few months. Usb C port now so loose it will not charge for more than a second unless propped correctly. Inexcusable for a $150-$200 product. Never moved it around, it just stayed in the same place so i swapped out the usb cable only a handful of times. No easy accessibility either, so self repair looks like a miserable task. Avoid.

Honestly was surprised at the functionality - this device is well built and looks nice, the UI works quite well and feels like a well designed phone app. Cons: - The battery lasts an extremely short amount of time - When charging, my unit emitted a high pitched and definitely not quiet buzzing noise. This was a show-stopper and I ended up returning because of this issue. Unsure if just an issue with my unit or others.

This is a great air quality sensor. I purchased one before my trip and used it on the trip and found it to be very accurate. If I spray some hand sanitizer in about a minute, then the VOC will start beeping. You can set an alert for a threshold for the different air quality categories, which is very handy and then you can tap a button to stop it. One time at night time the CO2 levels got high, so it beeped and so I knew that I needed to open a window. That only happened one time. It has a touchscreen which is really nice and it’s really easy to use right out of the box. The battery lasts probably three or four hours so I usually keep it plugged in and during the day I turn it off which I believe can save the life of the product because when I’m not home, I don’t really need it on so. It has this cartridge that you put in in the back and I’m pretty sure that probably has a life expectancy of that cartridge. Not sure how long it lasts, but I think turning it off during the day when you’re not home can extend the life of the product. It’s easy to turn it off just push and hold the button on the top and you can either reboot it or turn it off When I got back from my trip, I purchased another one for the home. You can also program it so the screen turns off between a certain time like when you’re sleeping, but it will still work while you’re sleeping. If you’re concerned about connecting it to your Wi-Fi, then you could just set up a guest network temporarily just so it can do a firmware update which will happen when you get it new out of the box and then it will set the time After that, you can turn off the Wi-Fi really easily in the settings if you don’t want it connected to the Wi-Fi

First the good. The hardware and software are both attractive. The device was easy to setup without referring to instructions. The software is mostly easy to use. The data it measures seems mostly useful. The software lets you make adjustments to the sensor data. For example, the temperature and humidity readings in my unit were off a few degrees / percent, so I was able to make global adjustments to match other temperature and humidity devices I own. Not a perfect match, but close enough to satisfy me. Most devices don't let you do this so I was happy to see it. Now the not so good. Where the heck is it getting its weather data from? No matter which city I chose, it displayed temperatures that were nowhere close to reality. Usually 20 or 30 degrees F higher than actual. My city was not in the database so I tried various nearby cities and towns, many of which were also not in the database. The closest nearby city had the wrong time zone in its database making the clock display an hour off. As I searched for other cities in my state I found many many misspellings. No wonder people have a hard time finding their location. It's a comedy of errors. Why they didn't just use a standard database of locations and time zones I have no idea, but what they do have is filled with bugs. The AQI data it shows comes from... where? It doesn't match AirNow or any other AQI source I can find for whichever city I set. The accompanying app looks pretty good at first glance, but after several uses I noticed that sometimes the data is many hours old. At other times the app is tracking the data on the devices screen in real time. What use is an air quality app if the data freezes up and shows you stale data? I want to see the data at a glance, not study it to discern whether it's live or stale. I don't really know how accurate the sensors are. As mentioned earlier, temperature and humidity were off a little from other devices I have, but I was able to adjust them to be close. But for particulates, CO2, and VOC I have no idea if they are accurate. But given the many obvious software errors I've found, I hesitate to trust anything I can't independently verify. PM2.5 and PM10 data are usually the same numbers, which does not seem right to me. Noise level data did change as sounds around me got louder or softer, but this is the least useful data to me, and again, no idea if the actual dB reading is correct. It recommends actions to take if any of the data exceeds a threshold. I didn't encounter poor air quality during my time with the device to see what it recommended. But when the indoor temperature was 71F it recommended I turn on a heater because, I guess it thinks 71F is cold. In the middle of summer. On a very hot day. I'm sorry but that is so wrong. This was just too many bugs for me so I had to return it. Maybe they will get the software worked out someday, but I'm not waiting around. I need data I can trust.