Specification :
DHT Temperature & Humidity Sensor ,suitable for Arduino / Raspberry Pi.
Can detect the temperature and humidity of the surrounding environment.
High reliability and excellent long-term stability.
Model : DHT11 / DHT22
DHT11 Details :
Humidity Range: 20-80% RH
Humidity Accuracy: ±5% RH
Temperature Range: 0-50 °C
Temperature Accuracy: ±2% °C
Operating Voltage: 3V to 5.5V
DHT22 Details :
Humidity Range: 0-100% RH
Humidity Accuracy: ± 2-5% RH
Temperature Range: -40 to 80 °C
Temperature Accuracy: ±0.5% °C
Operating Voltage: 3V to 5.5V
Tutorial / Reference Link :
https://randomnerdtutorials.com/complete-guide-for-dht11dht22-humidity-and-temperature-sensor-with-arduino/