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We got our hands on some air quality sensors, they're not one of those super premium SENS55 imported things (that cost a whopping $60), this one belongs to the made-in-China kind, and it seems to be the same one on the Xiaomi Air Purifier 2S. It's cost is acceptable, giving us the opportunity to make an air quality sensor for under $30. However, our supplier gave us the wrong cable, and this 1.25mm cable requires a special adaptation. But we are looking forward to share an air quality sensor based on it in the future. From the parameters, it seems that it can measure PM1.0, PM2.5, PM10, and the number of particles (PM10, PM5.0, PM2.5, PM1.0, PM0.5, PM0.3). Lots of attributes right? Seems like a lot of fun. ๐
