Air quality meter for SDS021 and SDS011
Frugal, portable air quality meter for your phone. Buy an SDS021 or an SDS011 and plug it in your phone using an adapter. This app will show you the PM2.5 and PM10 concentration levels.
SDS021 is USD20. and SDS011 and USD 17. A USB adapter doesn't cost more than two dollars. This makes it possible to have a very low-cost air quality monitor.
Step 1) Buy the sensor (SDS021) from AliExpress
Step 2) Buy the adapter (I bought it from eBay.in)
Step 3) Download the app
Step 4) Open the app
Step 5) Plug in the sensor
Step 4 and step 5 should not be interchanged!
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