Qingping · Best overall
Qingping Air Monitor 2
PM2.5, CO₂ and five other readings on a sharp 4-inch touch screen, with history in the Qingping+ app over Wi-Fi.
- PM2.5, CO₂, eTVOC, temperature, humidity, noise
- 4-inch touch screen
$149.99at qingping.co · Nov 2026
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Qingping Air Monitor 2 at a glance
- Measures
- PM2.5, PM10, CO₂, eTVOC, temperature, humidity, noise
- CO₂ range
- 400–9,999 ppm
- PM range
- 0–999 µg/m³
- Screen
- 4-inch IPS touch screen, automatic brightness
- Connectivity
- Wi-Fi (2.4 and 5 GHz), Qingping+ app
- Power
- USB-C, with a 1,800 mAh battery for a few hours unplugged
- Sensors
- Sensirion inside (maker's announcement); the PM sensor can be replaced
Our take
The Air Monitor 2 answers the two questions a bad-air day raises: is the smog getting in, and is the room getting stuffy with the windows shut? It shows PM2.5 and CO₂ side by side on a bright, colour-coded screen.
The Qingping+ app keeps the history, which is how you see a purifier pull the PM2.5 down, or a closed bedroom's CO₂ climb overnight. Plan to keep it plugged in: the battery is for moving it, not for living on.
Its eTVOC figure shows a trend, not a measured amount, and PM10 is worked out from the same particle sensor.
Good for
- Checking that a purifier is keeping up
- Deciding when to air a room shut against smog
Skip it if
- You need it to run on battery for days: keep it plugged in
How it compares
Every air monitor in the shop.
| Product | Best for | Price |
|---|---|---|
| Qingping Air Monitor 2 (this one) | Best overall | $149.99 |
| Aranet4 Home | Fresh-air check | $189.00 |
| Airthings View Plus | Radon too | $329.99 |
| IQAir AirVisual Pro | Indoor vs outdoor | $329.99 |
| Qingping Air Monitor Lite | Apple Home | $76.00 |
| Temtop M2000 (2nd gen) | Handheld | $209.99 |
| GoveeLife Smart Air Quality Monitor H5106 | Budget PM2.5 | $39.99 |
| Qingping CO₂ & Temp & RH Monitor | Wi-Fi CO₂ | $69.99 |
Goes with
Qingping CO₂ & Temp & RH MonitorWi-Fi CO₂ · $69.99
Qingping Air Monitor LiteApple Home · $76.00
In our buying guides
Head to head
Questions about the Air Monitor 2
- Does the Qingping Air Monitor 2 measure formaldehyde?
- No. It reads PM2.5, PM10, CO₂, eTVOC, temperature, humidity and noise.
- Does it work without Wi-Fi?
- Yes: the screen works on its own. Wi-Fi adds the app, its history and alerts.
How we judge. We haven't tested the Air Monitor 2 in a lab of our own. The figures come from independent ratings (AHAM, Energy Star, NIOSH, the ASPCA) or the maker, and the verdict is ours, from those figures. No brand pays to be listed. Last checked Nov 7, 2026.
Qingping Air Monitor 2
$149.99 list price