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Unconditional Satisfaction GuaranteeNo Shipping Fees Above 302 Months to Decide. Returns Simplified.This DHT22 sensor has a capacitive humidity sensor and a temperature sensor. The humidity sensor measures from 0 to 99.9% RH with 2% accuracy, while the temperature sensor operates between -40 to 80C with 0.5C accuracy. Compared with the DHT11, the DHT22 is more precise and has a wider measurement range.
Thanks to its built-in 8-bit microcontroller, the DHT22 converts the analogue readings from both sensors into digital signals, allowing it to output temperature and humidity data through a single pin for easy use in your projects. It is compatible withArduino(With aGrove – Base Shield)orRaspberry Pi(Only with theGrove-Base HAT)
| Item | Min | Norm | Max | Unit |
| Input voltage (VCC) | 3.3 | – | 6 | V |
| I/O Logic Level | – | Based on VCC | – | V |
| Measuring Current Supply | 1 | – | 1.5 | mA |
| Standby Current Supply | 40 | – | 50 | uA |
| Measuring range(Humidity) | 0.05 | – | 0.99 | RH |
| Measuring range(Temperature) | -40 | – | 80 | C |
| Accuracy(Humidity) | – | – | 2% | RH |
| Accuracy(Temperature) | – | – | 0.5 | C |
| Resolution(Humidity) | – | – | 0.001 | RH |
| Resolution(Temperature) | – | – | 0.1 | C |
| Repeatability(Humidity) | – | – | 0.3% | RH |
| Repeatability(Temperature) | – | – | 0.2 | C |
| Long-term Stability | – | – | 0.5% | RH/year |
| Signal Collecting Period | – | 2 | – | S |
| Respond Time 1/e(63%) | 6 | – | 20 | S |
| Signal pin mode | – | Digital | – | – |
