More:Sumozade
The DHT21 Temperature and Humidity Sensor is an advanced sensor module that provides calibrated digital signal output for temperature and humidity detection.
It offers high reliability and stable performance for long-term operation. The sensor includes an 8-bit microprocessor and delivers fast, high-quality response.
The unit measures temperature from -40 to 80°C with ±1°C accuracy, and humidity from 0–100% RH with ±5% RH accuracy. Measurement readings are obtained at 2-second intervals due to the sensor’s data acquisition period. Compared to other DHT models, the DHT21 is slightly larger in size.
Features:
- High-performance model from the DHT series
- Digital output
- Operating Voltage: 3.3–5 VDC
- Measurement Range:
- Humidity: 0–100% RH
- Temperature: -40–80°C
- Accuracy:
- Humidity: ±3% RH (Max ±5% RH)
- Temperature: < ±1°C
