DHT11 Digital Temperature and Humidity Sensor – 5V Output

The DHT11 is a low-cost digital temperature and humidity sensor designed for basic environmental monitoring applications. It integrates a capacitive humidity sensor and a thermistor to provide calibrated digital output through a single data pin. Operating at 5 V, it eliminates the need for analog inputs and simplifies system integration. The sensor updates readings every 2 seconds, ensuring stable and reliable measurements for non-time-critical applications. It is well suited for educational projects, microcontroller experiments, and simple weather monitoring systems.

• Digital temperature and humidity measurement
  
• Capacitive humidity sensing element
  
• Integrated thermistor for temperature sensing
  
• Single-wire digital data output
  
• 5 V operating voltage
  
• Calibrated digital signal output
  
• Low power consumption
  
• Compact sensor form factor

• Operating Voltage: 5 V DC
  
• Humidity Measurement Range: 20–90 %RH
  
• Humidity Accuracy: ±5 %RH
  
• Temperature Measurement Range: 0–60 °C
  
• Temperature Accuracy: ±2 °C
  
• Output Signal: Digital single-wire
  
• Sampling Rate: 1 reading per 2 s
  
• Dimensions: 28 × 12 × 8 mm

• DHT11 Datahsheet
• DHT11 Temperature & Humidity Sensor 3D Model 

• Temperature Controlled Fan using Arduino
  
• Save values to SD card using Arduino
  
• Monitor temperature and humidity using DHT11
  
• Transmitting Temperature and Humidity Wirelessly with HC-12