2pcs DHT22/AM2302 Digital Temperature and Humidity Sensor Module Temperature Humidity Monitor Sensor Replace SHT11 SHT15 for Arduino Electronic Practice DIY

Many datasheets seems to be written to obscure the truth by making it seem like corner conditions with multiple asterisks are the normal operating region of the IC. Not this one. It's simple, easy to deploy on Arduino given the libraries available within the Arduino IDE, and it's pretty accurate for what it is. I plan to use mine for a fermentation chamber control. Time to start ordering cultures for salumi.

Works just fine hooked up to my Shelly device for temperature and humidity readings.

The accuracy is possibly a little off but as long as they are consistent then I can calibrate. In the screenshot, there is output for two separate sensors. The temps are pretty consistent but I notice that the humidity ranges from about 1 to 2 differently. For the output the sensors were sitting about 2 inches apart. The soldering could use some better consistency. In the photo, you can see that one board is soldered on straight but one is crooked. What a great price ($7.34 at the time) for an accurate temp. The humidity is close enough. I don't really need it so its just a bonus. If you're looking for something with extreme accuracy, I think you'd be looking for something a lot more expensive.

DHT22 sensors aren't exciting or fancy, but these arrived in good condition in an anti-static pack (nice of them at this price point), both working; I'd recommend this seller if you need these basic sensors for cheap.

Extremely disappointed, I bought these to be used in a hydroponic automation system as a replacement for the DHT11 to read humidity levels while connected to an ESP32. It works for about 5 ish minutes before either the readings returned null or didn't return anything at all indefinitely. This was all in relatively low humidity (35-55%), I tried with multiple sensors and multiple different boards (ESP32, Arduino Uno, and ESP8266) still the issue persists. Would not recommend it, the boards themselves are flimsy and the sensor isn't properly mounted to the PCB.

Love these. Does exactly as you would expect. Well constructed board appreciated the included wires.

First one worked perfectly. Noticed that the plastic cover on the bad one has a crack on it. Didn't notice any bad solder joints. I would have swapped them right away but I was setting up the first one at my cabin and forgot the other one at home. A week later when I swapped it with the working one it didn't work. Now how does one return a portion of a multi pack?

Lo utilice para controlar la temperatura del corral de los perros recién nacidos con un ESP32 e hice varias comprobaciones con termómetros análogos y era Super preciso, al igual que la humedad relativa del aire.