DHT11 Digital Temperature And Humidity Sensor Module

Key Features:

✔ Dual Measurements – Simultaneously detects temperature (0–50°C) and humidity (20–90% RH)✔ Digital Signal Output – Single-bus communication for easy MCU integration (no analog calibration) ✔ Pre-calibrated – Factory-programmed for immediate use (±2°C temp, ±5% RH humidity accuracy) ✔ Low Power – Operates at 3V–5.5V (compatible with 3.3V/5V logic devices) ✔ Compact & Ready-to-Use – Onboard pull-up resistor and signal conditioning circuitry

Technical Specifications:

• Sensor Type: Resistive humidity sensing + NTC thermistor

• Humidity Range: 20–90% RH (±5% accuracy)

• Temperature Range: 0–50°C (±2°C accuracy)

• Response Time: 1–2 seconds

• Sampling Rate: 1Hz (1 reading per second)

• Interface: 3-pin (VCC, GND, DATA)

• Dimensions: ~15.5mm × 12mm × 5.5mm

Package Includes:

• 1 × DHT11 sensor module

• 3 × male header pins (unassembled)

Typical Applications:

• Home/office environment monitoring

• Agricultural greenhouse control

• Ventilation/HVAC systems

• Educational electronics projects

⚠ Notes:

• Avoid direct exposure to water/condensation (non-waterproof design)

• For higher precision, consider the DHT22 (temperature range: -40–80°C, ±0.5°C)

• Requires compatible libraries (e.g., DHTlib or Adafruit DHT)