Description

The DHT11 is a compact, low-cost digital temperature and humidity sensor designed for precision and reliability. It combines a resistive-type humidity sensing component and an NTC temperature sensor, paired with an 8-bit microcontroller to deliver highly accurate and stable performance. Featuring factory-calibrated outputs, a single-wire digital interface, and low power consumption, the DHT11 is easy to integrate and ideal for various applications requiring environmental monitoring.

Key Features & Benefits

• High Accuracy: ±2°C temperature and ±5% RH humidity accuracy.
• Low Power Consumption: Energy-efficient for battery-powered devices.
• Simple Communication: Single-wire digital interface for straightforward integration.
• Compact Design: Space-saving 4-pin single-row package.
• Durable and Reliable: Factory-calibrated for long-term stability and reliability.

Applications

• IoT and Smart Home: Weather stations, smart thermostats, and environmental monitoring.
• HVAC Systems: Climate control and air quality analysis.
• Industrial Applications: Storage monitoring and precision manufacturing environments.
• Educational Projects: Easy-to-use sensor for learning and prototyping.

Specifications

• Humidity Range: 20–90% RH
• Temperature Range: 0–50°C
• Humidity Accuracy: ±5% RH
• Temperature Accuracy: ±2°C
• Resolution: 1% RH, 1°C (8-bit data output)
• Power Supply: 3V–5.5V DC
• Power Consumption: 0.2–2.5 mA during operation
• Response Time: 6–10 seconds for humidity; up to 30 seconds for temperature
• Communication: Single-wire digital interface
• Dimensions: 4-pin single-row package