DHT22
DHT22 Temperature-Humidity Sensor DHT22 Temperature-Humidity Sensor User Manual
Overview
Part: DHT22 Temperature-Humidity Sensor
Type: Calibrated Digital Temperature and Humidity Sensor
Key Specs:
- Humidity Resolution: 0.1 %RH
- Humidity Range: 0 ~ 99.9 %RH
- Humidity Accuracy: ±2 %RH (25°C)
- Temperature Resolution: 0.1 °C
- Temperature Range: -40 ~ 80°C
- Temperature Accuracy: ±0.5°C
- Operating Voltage: 3.3V-5V
Features:
- Calibrated digital sensor
- Uses DHT22 (AM2302)
- Standard single-bus interface
- Higher accuracy and wider range than DHT11
- Transmits 40 bits of data (humidity high byte, humidity low byte, temperature high byte, temperature low byte, checksum)
Applications: null
Package: null
Features
This product is a calibrated digital temperature and humidity sensor used for detecting ambient temperature and humidity. It uses DHT22 (AM2302) with a standard single-bus interface. It has higher accuracy and a wider range than DHT11.
Product Parameters
| Humidity | Temperature | |
|---|---|---|
| Resolution | 0.1 %RH | 0.1 °C |
| Range | 0 ~ 99.9 %RH | -40 ~ 80°C |
| Accuracy | ±2 %RH (25°C) | ±0.5°C |
| Recommended Storage Environment | Below 60%RH | 10°C ~ 40°C |
| Operating Voltage | 3.3V-5V |
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