Review on 🌡️ Tabletop Temperature Pollution Detector by KOPUO by Sean Young

I bought this for an extra room. I have other AQI test devices. This product has consistently shown a significantly lower AQI (we're talking readings of 8-12 vs 60) than other devices. I left it around for 6 hours both connected and disconnected. I also left it outside for 6 hours. Constantly showed low values. I replaced the block assuming it was bad, but the new block did about the same thing. I returned the device for a refund (thanks Revain). Perhaps this company calculates the AQI differently than other American devices. Also, there was no website where I could discuss the results or get support - just amazing. My recommendation is to buy a device from another manufacturer.