Comparing HT SensorPush with DHT22+ESP32

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The SensorPush HT.w is a wireless, battery powered air thermometer and hygrometer. It is pricy, I got it for 90$. Let’s compare it to DIY solution with the DHT22 and an ESP32 for less than 10 bucks.

blue: HT.w, red: dht22. DHT22 is noisier and has lower accuracy.
orange: HT.w; yellow: DHT22. Error here is much greater when compared to temperature error (5%). Error appears to increase with higher humidty. Can try to create a calibration table.

For my application the noise level and accuracy of the DHT22 is sufficient.

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