Technical Specifications

DHT11

Digital Humidity & Temperature Sensor

Introduction:

DHT11 digital temperature and humidity sensor is a digital signal output with a calibrated temperature and humidity combined sensor.

The DHT11 is a simple low-cost digital temperature and humidity sensor. It uses a capacitive humidity sensor and a thermistor to measure the surrounding air, providing a digital output, updated approximately every 2 seconds. It's fairly simple to use, but requires careful timing to acquire data.

• 3 to 5V power and I/O
• 2.5mA max current use during conversion (while requesting data)
• 20-80% humidity readings with 5% accuracy
• 0-50°C temperature readings ±2°C accuracy
• No more than 1 Hz sampling rate (once every second)
• Body size 15.5mm x 12mm x 5.5mm
• Breadboard/Stripboard friendly 2.54mm (0.1") pin spacing

It uses a dedicated digital modules and acquisition of temperature and humidity sensor technology to ensure that products with high reliability and excellent long term stability. Sensor consists of a resistive element and a sense of wet NTC temperature measurement devices, and with a high-performance 8-bit microcontroller connected. Therefore, the product has excellent quality, fast response, anti-interference ability, high cost and other advantages. Each DHT11 sensors are extremely accurate calibration of humidity calibration chamber. Calibration coefficients stored in the OTP program memory, internal sensor, signal processing in the detection process to call these calibration coefficients. Single-wire serial interface, allowing the system to become simpler and quicker integration. Ultra -small size, low power consumption, signal transmission distance up to 20 meters, making it a wide range of applications and even the most demanding applications is the best choice. Product is 4-pin single-row pin package. Easy connection, special packages can be provided according to user needs.

Specification

1. Relative humidity and temperature measurement

2. All calibration, digital output

3. Excellent long-term stability

4. No additional components

5. long distance signal transmission

6. Ultra-low power

7. 4-pin package

8. Completely interchangeable

Applications:

HVAC

Testing and inspection equipment

Automotive

Data logger

Consumer goods

Automatic control

Weather Station

Home Appliances

Humidity Regulator

Medical

Dehumidifier

Color: Blue

Data Sheet