DHT11 Digital Temperature and Humidity Sensor Module

The DHT11 Temperature and Humidity Sensor is a high-quality sensor module with a calibrated digital signal output. It integrates an 8-bit high-performance microcontroller to provide fast, reliable, and stable measurements for both temperature and humidity. Its advanced technology ensures excellent long-term accuracy and anti-interference performance.

Product Highlights

• Calibrated digital signal output
• Fast response time
• High accuracy and reliable performance
• Anti-interference capability

How It Works?

This sensor includes a resistive element and a temperature sensor using wet NTC technology. It is designed for precise temperature and humidity measurements, offering a stable and high-performance solution for electronics projects.

Calibration Details

Each DHT11 sensor is factory-calibrated in a humidity calibration chamber. Calibration coefficients are stored in the OTP program memory, which allows internal sensors to detect and output accurate signals for both temperature and humidity.

Technical Specifications

Technical Specifications

• Operating Voltage: 3.5V to 5.5V
• Output: Serial data
• Humidity Range: 20% to 90%
• Resolution: 16-bit for both temperature and humidity

Applications

• Temperature and humidity monitoring
• Local weather stations
• Automatic climate control systems
• Environmental monitoring
• IoT and smart home projects

Pin Configuration & Setup

The DHT11 sensor comes in a 4-pin single-row package and is factory-calibrated, making it easy to set up. Connect the data pin to an I/O pin of your MCU with a 5K pull-up resistor. The data pin outputs temperature and humidity values as serial data. Ready-made libraries are available for Arduino and Raspberry Pi to speed up your project development. Signal transmission distance can reach up to 20 meters.

Why Choose DHT11 Sensor?

Its compact size, low power consumption, and reliable performance make the DHT11 ideal for a wide range of applications, from hobby electronics to professional climate monitoring projects. Special packages are available upon request to suit specific user requirements.