DHT-11 Temperature & Humidity Sensor

The DHT11 is an all-in-one sensor for measuring relative humidity and ambient temperature. It combines a resistive humidity sensor and a thermistor with an 8-bit microcontroller to provide a calibrated digital signal via a simple single-wire serial protocol.

This module is ideal for basic environmental monitoring in home or industrial applications. It offers outstanding long-term stability, low power consumption, and requires no external components for operation.

Specifications

• Measurement Range: 20-90% RH, 0-50°C
• Accuracy: ±5% RH, ±2°C
• Supply Voltage: 3.3V to 5V DC
• Interface: Digital (1-wire)
• Sampling Rate: Max 1 Hz

Resources

• Technical Datasheet (PDF)
• Official Adafruit Arduino Library