QP Pro Air Quality Monitor

4.33 out of 5
(3 customer reviews)


Offer No of items Discounted price
Bulk discount 5-9 5 - 9 £125.40
Bulk discount 10+ 10 + £118.80

Award-winning 5-in-1 air quality monitor with 3.1" HD retina display. Tracks 5 key metrics: PM2.5, dangerous gases (tVOC), CO2 (NDIR), temperature, and humidity. Also provides information on the outdoor environment including weather forecast, AQI, and UV index. Accuracy backed by Smart Air's third-party tests. We also offer the QP Lite travel air monitor. Not sure which one to buy? We explain the main differences between the QP Pro vs QP Lite. We can deliver our monitors to the EU for £15. Click here for EU purchases.


See What's In Your Air

QP Pro Air Quality Monitor

The air you breathe into your body has a huge impact on your health. The QP Pro allows you to 24/7 monitor the air in your home so you never breathe dangerous air again.

5-in-1 Comprehensive Monitoring

The QP Pro air quality monitor gives you a comprehensive look into the air you are breathing.

Award-Winning Air Quality Monitor

The QP Pro is both an iF and Red Dot design award winner.

Monitor Your Air From Anywhere

By connecting to the Qingping+ App, you can monitor your air from anywhere. Get instant alerts to your phone when air quality becomes unsafe. App available on the Apple and Google Play store.

Record and View Historical Data

Track and analyse your air quality over time and export data for further analysis.

Real-time Outdoor Snapshot

The QP Pro brings you weather forecasts, air quality index (AQI), UV index, and the time - all in one snapshot.

Smartphone-Like Touch Operation

A smooth user experience with tap and swipe functionality.

HD Retina IPS Display

3.1", PPI 328, touch screen, automatic brightness adjustment, large viewing angle, high contrast.

Superior Performance

Incredibly responsive and accurate. Innovative vent design for more accurate sensors. Precision remains with long-term use.

Free Upgrades to Functionality

Continuous software upgrades to optimise existing functions and add new functions, similar to your smartphone.

Only Standalone Monitors Accurately Measure Air Quality

Built-in sensors on devices such as air purifiers can only detect the air conditions next to the device. The QP Pro independent air monitor can test the air anywhere.

Treat Your Body Right

High CO2 levels are common and often go unnoticed causing a variety of issues. The QP Pro will allow you to 24/7 monitor and crack a window open if concentrations get high.

Source: Health Canada (2021)

Track PM2.5, One of Biggest Killers in the World

Are your PM2.5 levels over the WHO limit of 5 micrograms? If so, studies show reducing your PM2.5 levels even just a little bit with HEPA air purifiers can reduce your risk of death significantly.

  • PM2.5: One of the biggest killers in the world, with 99% of the population breathing dangerous levels. Even moderate levels are shown to cause cancer and heart disease.
  • tVOC: Dangerous gases such as formaldehyde which can irritate our organs and cause cancer.
  • CO2: High CO2 levels can result in drowsiness, headaches, high blood pressure, and more.

*If levels are high, a combination of HEPA air purifiers and improved ventilation can help lower levels

QP Pro Documents

Product ManualQuick set-up video / instructionsBrochureQP Pro DemoLite vs Pro

QP Pro Technical Specifications

Your Purchase IncludesIncludes 1 × QP Pro Air Quality Monitor
ColorWhite / Black
Dimensions L × W × H (mm)85 × 68.4 × 86.3
Weight (g)217
RangesPM2.5: 0 ~ 999 μg/m³ Temperature: -10 ~ 50℃ Humidity: 0 ~ 100%RH TVOC: 0.005 ~ 9.999 mg/m³ CO2: 400 ~ 9999 ppm
Power Supply5V - 1A / USB-C cable
Wi-FiWi-Fi 2.4GHZ
SensorsSee FAQs below
Screen Type3.1" LCD Touch Screen / Resolution: 720 × 720
Supported PlatformsXiaoMi Mijia
Warranty1 year

Battery Information

Battery TypeLithium Ion Battery 1800mAh / 3.7V
Battery LifeApprox. 4 hours

The QP Pro FAQs

My QP Pro has arrived, what do I do?

To set up your QP air monitor, please follow these quick instructions:

  1. Download the Qingping+ (basic) or Qingping IoT (advanced) app onto your phone and connect your monitor so you can access additional monitor settings
  2. Go to the settings screen and check the firmware to see if any recent updates are needed on your monitor

Our monitors are set to auto calibrate CO2. We recommend going through the settings to check all the defaults are right for you.

  • Auto calibrate: As long as the device is exposed to around 400-500ppm CO2 for a few hours every month, you shouldn’t need to calibrate it. This can be done by taking the device outside or placing it next to an open window. If the device isn't getting enough exposure to outdoor levels, the sensors may drift over time. If this happens, you can reset the CO2 sensors in the Settings accessed via the app.
I am sensitive to EMFs and want to reduce them while measuring air quality. Do the Smart Air monitors produce EMFs?

The manufacturer has confirmed that it may be difficult for the air monitors to be set to airplane mode or block the surrounding signal. The good news is such device is essentially a signal receiver, which means as long as it is not actually connected to Wi-Fi or Bluetooth, it will only emit negligible EMF in comparison to a router or smartphone. A device picking up your monitor doesn’t mean they are connected and you can ask smart devices, such as TV or smartphones, to ignore your air monitor to avoid any unwanted connections. It isn’t easy to shut down the connection, or cut off the signal, on monitors as they are mainly operated via Apps, as are most monitors on the market.

Why can't I connect to the Wi-Fi?

The QP Air Monitors don’t support Wi-Fi that requires authentication to be completed on a web page or information to be entered in a special login client. Please check the network signal before purchasing as the monitor currently only supports 2.4GHz or 2.4GHz/5GHz networks. It will not work on a 5GHz network.

Do I have to be connected to the Internet to use the monitor?

No. The air monitoring function works well without an internet connection. However, when not connected to the Internet the time, weather conditions and remote viewing functions are unavailable.

How long is historical data kept? Does it support the export of historical data?

Hourly data from the past 24 hours is available. The highest and lowest readings per day in the past 7 days is also available for viewing. The Qingping IoT app has an 'export historical data' function.

How long is the battery life?

When not connected to a USB power source, the QP Pro Air Monitor will automatically shut down when the battery falls to 5%. The monitor can last on standby for about 4 hours from fully charged to automatic shut down. However, it is recommended that you keep the monitor connected to a power supply. The QP Pro Air Monitor has a built-in power management function similar to that of a laptop, which does not damage the battery.

Can I use any USB charger with this and why doesn’t it come with a plug?

To keep costs down, we only provide the ubiquitous USB power cable. Plug this into your laptop or a USB plug to charge the device.

The 5v USB-C to USB-A cable should be paired with a plug that has a USB-A port. Laptop cables are too powerful for the QP air monitors and may cause them to overheat. Always check the voltage before using any substitute cables, you should only use a 5v cable.

What sensors are used?

The QP Air Monitors use the following sensors:

  • Grandway sensor - Built-in laser scattering PM2.5 sensor with high precision
  • Built-in Swiss Sensirion sensor for temperature and humidity, with high precision
  • Built-in SGP30 gas sensor by Sensirion for measuring tVOC. Multi-pixel technology, good accuracy and high consistency with unparalleled siloxane resistance, long-term stability and low drift
  • Built-in SenseAir CO2 Sensor S8 - Nondispersive infrared (NDIR) spectrum analysis from the world's largest manufacturer of CO2 sensors. High stability, consistency, precision, excellent anti-interference and sensitivity.
What is the measuring accuracy?

Due to the wide variation in user environments and testing methods, we cannot guarantee accuracy. However, the accuracy range of our internal tests are as follows:

  • Temperature: ±8℃ (the device needs to be turned on and placed in a windless environment for 30 min during the test)
  • Humidity: ±8% (the device needs to be turned on and placed in a windless environment for 30 min during the test)
  • PM2.5: ±10μg/m³ when the reading is less than 100μg/m³; ±10% when the reading is greater than 100μg/m³ (the laser type PM2.5 sensor is susceptible to ultrasonic type humidifiers, and it is recommended to turn off the humidifier for more accurate results)
  • tVOC: ±20% (the tVOC sensor requires complete initialisation - see FAQ on initialisation)
  • CO2: ±15% (CO2 in the air is not uniformly distributed so it is challenging for low cost sensors to be more accurate)
Can the QP Pro detect formaldehyde? Is tVOC equal to formaldehyde?

Formaldehyde cannot be monitored with the QP Pro. tVOC (total volatile organic compounds) contains thousands of compounds, such as formaldehyde and benzene, but it is NOT equal to formaldehyde. tVOC readings may increase significantly when there are more people in the room or during activities such as cooking, eating, cleaning or putting on make up. They then usually fall back down after the activity is finished or the room is ventilated. tVOC readings can also increase significantly when unsealed substances containing alcohol are present near the monitor. Indoor tVOC can also come from combustion products such as coal or natural gas, tobacco, materials used in construction and decoration, furniture, and household appliances. Some VOCs are harmful to humans, and by opening windows or turning on ventilation systems as well as identifying and eliminating the sources, you can effectively reduce tVOC concentrations.

How long does tVOC need to initialise after the device is powered on

The first time you turn on the monitor, or after it has been turned off for more than 7 days, the tVOC initialisation will take at least 4 hours. If the monitor is off for less than 7 days, the initialisation times are approximately as follows:

  • Off for less than 1 hour: 30 seconds
  • 1 - 12 hours: 90 seconds
  • 12 - 48 hours: 6 minutes
  • 48 hours - 7 days: 12 minutes
  • More than  7 days (or the first time the power is turned on): 4 hours

If the monitor is turned off or restarted during the initialisation process, then the unfinished initialisation process will start from the beginning again after the power is turned back on.

Do I need to calibrate the CO2 sensors manually? (Short answer)

Our air monitors use auto-calibration and are calibrated at the factory. This means that you shouldn’t need to calibrate again as long as the device is exposed to around 400-500ppm for a few hours every month. This can be done by taking the device outside or placing it next to an open window. If the device isn't getting enough exposure to outdoor levels, the sensors may drift over time. If this happens, you can reset the CO2 sensors in the Settings accessed via the app.

If you are indoors in an environment like a school where the classroom is empty for around 10-16 hours a day then CO2 levels may drop to near outdoor levels and you won't have to take the device outside regularly. If your indoor environment is dusty, you may need to calibrate more frequently.

Do I need to calibrate the CO2 sensors manually? (Detailed answer)

CO2 sensors, like all sensors, can experience 'drift,' leading to minor deviations in readings over time. Traditionally, this was addressed through manual calibration. However, modern CO2 sensors come with an automatic calibration feature, activated when the CO2 concentration returns to the atmospheric background level (around 400 ppm)*. This makes the sensor virtually maintenance-free for most users.

In cases where CO2 levels don't return to atmospheric levels for an extended period, manual calibration may be needed. For users who require highly precise readings, a monthly manual calibration can be performed outdoors while keeping auto-calibration active.

* The auto-calibration feature requires the user's environment to be kept airy for a period of time every day. In an office, school or home environment there are usually long periods of time during the day when no one is around and the CO2 concentration drops to atmospheric background values, at which point the auto-calibration will function properly. It is recommended that CO2 concentration drops to atmospheric background values at least once a week to keep the auto-calibration functioning properly.

What smart home platforms are supported?
  • Xiaomi Mijia
Is there a backlight function?

The screen comes with a backlight similar to a phone screen. You can manually turn off the screen, or enable “automatically turn off the screen after no operation for a period of time" in the settings.

More FAQs

Additional information


Black, White

3 reviews for QP Pro Air Quality Monitor

  1. 4 out of 5

    Tina (verified owner)

    I haven't had my air monitor for long. It arrived beautifully packed. Smart Air customer service is excellent. They answered all my questions. I like the quality of the air monitor. The screen reacts very well just like the touch screen of a high end mobile phone. I am disappointed that I can't see the PM2.5 reading, the CO2 reading and the VOC reading all together on one screen in large letters. I thought I could sit on the sofa and see all three together. You can only see one reading in large letters. However, there are lines in different colours and that helps. The temperature reading is not accurate at all. The PM2.5 reading is the same as the one I get from another PM2.5 air quality monitor I own. I am quite shocked that my VOC reading shows orange so very fast. I don't use scented cleaning products etc. Makes me wonder if the carbon filter of the brand new two Smart Air air purifiers SA600 do anything at all. I don't know if the VOC reading or the CO2 readings are accurate. Connecting the air monitor to the app was easy. I bought the white version with the beautiful silver back. The air monitor is smaller than it looks in the photos. Easy to carry around from room to room but if you want to see the readings you need to get up from the sofa to the air monitor in order to be able to see them. Space saving. I hope the air quality monitor will work a few years. I don't regret having bought the air quality monitor. Don't buy it for accurate temperature or humidity readings. They are both not accurate.

  2. 5 out of 5

    Marion Metcalfe

    Excellent air purifier. Compact. Easily used anywhere.

  3. 4 out of 5

    Peter Knapp (verified owner)

    Very smart device that is small enough to be taken to other places. Very helpful to have all the data on one screen.

    The 15-min time intervals on the app are too long, in my opinion. I would rather the readings can be set to 1-min intervals so that rapid changes in air quality (e.g. cooking, ventilation) can be observed.

    The app refresh is slow, e.g. now it is 12:57 but the app is showing data up to 2:15am last night. There is no way to force the refresh, but this could be fixed with a software update.

    I would love for there to be a pro-setting where I could calibrate the device compared to local monitoring stations for pollutants such as PM2.5.

    Another suggestion - to explain in the manual how to connect to a smart plug, so that when PM2.5 is above a user-defined threshold, it triggers the smart plug to turn the SmartAir cleaner on.

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