Description
Product Description
Product Description
The DHT 11 Digital Relative Humidity and Temperature Sensor Module combines a humidity sensing element, NTC thermistor, and an onboard 8-bit microcontroller to provide digital temperature and humidity measurements.
The module is designed for easy integration with microcontroller-based projects. Its digital output eliminates the need for analog input pins, making it suitable for Arduino, ESP32, and other development boards.
The module includes an onboard LED indicator, bypass capacitor, pull-up resistor, and fixed mounting hole for convenient installation. It has low power consumption and provides reliable measurements for basic environmental monitoring applications.
The DHT11 has a measurement update interval of approximately 2 seconds (0.5 Hz), meaning new readings should normally be requested no more frequently than once every 2 seconds.
Key Features
- Low power consumption
- Digital temperature and humidity output
- Pre-calibrated sensor
- Uses capacitive humidity sensing and NTC thermistor technology
- Simple single-wire data communication
- Easy to interface with Arduino, ESP32, and other microcontrollers
- Onboard power indicator LED
- Built-in pull-up resistor on the data line
- Bypass capacitor between VCC and GND
- Fixed mounting hole for easy installation
- High reliability and long-term stability
- Suitable for basic environmental monitoring applications
Technical Specifications
| Specification | Details |
|---|---|
| Sensor | DHT11 |
| Working Voltage | 3.3V–5V |
| Humidity Measurement Range | 20%–95% RH |
| Humidity Measurement Accuracy | ±5% RH |
| Temperature Measurement Range | 0°C–50°C |
| Temperature Measurement Accuracy | ±2°C |
| Output Type | Digital |
| Data Interface | Single data pin |
| Measurement Interval | Approximately 2 seconds |
| Power Indicator | Red LED |
| Installation | Fixed mounting hole |
Applications
- HVAC systems
- Weather stations
- Home appliances
- Humidity regulators
- Dehumidifiers
- Automotive applications
- Data loggers
- Automatic control systems
- Testing and inspection equipment
- Consumer electronics
- Environmental monitoring
- Educational and IoT projects
Product Includes
- 1 × DHT11 Digital Relative Humidity and Temperature Sensor Module
Product Disclaimer
- The DHT11 is intended for general-purpose temperature and humidity monitoring and basic electronic projects.
- Measurement accuracy may vary depending on environmental conditions, installation, power supply, and application.
- The sensor should not be used where highly precise or safety-critical temperature and humidity measurements are required.
- Allow an appropriate interval between readings; the recommended measurement interval is approximately 2 seconds or more.
- Specifications and product appearance may vary slightly depending on the manufacturer or module version.
- Always verify the module’s pin configuration and operating voltage before connecting it to a microcontroller.
Key Features
- Suitable for electronics learning, prototyping and practical projects.
- Use with compatible hardware and documented connections.
- Supports careful testing before final project installation.
- Choose the correct power supply, accessories and software for the project.
Specification
Refer to the manufacturer datasheet, product markings and documented pinout for the final technical specifications, ratings and dimensions.
Application
- Student learning and laboratory exercises.
- Maker, hobby, automation and embedded-project prototypes.
- Testing compatible circuits, controllers and development platforms.
Product Includes
The package includes the item named in the product title. Cables, headers, power supplies and other accessories are included only when specifically listed in the product information.
Product Disclaimer
Use this product only within its documented electrical, mechanical and environmental limits. Confirm compatibility, polarity, wiring and safe power requirements before connecting it to any controller or power source.
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