DHT11 Datasheet PDF – Humidity & Temperature Sensor

Part Number: DHT11

Function: Temperature and humidity Sensor module

Manufacturer: AOSONG

Image & Pinouts:

DHT11 sensor



This DFRobot DHT11 Temperature & Humidity Sensor features a temperature & humidity sensor complex with a calibrated digital signal output. By using the exclusive digital-signal-acquisition technique and temperature & humidity sensing technology, it ensures high reliability and excellent long-term stability. This sensor includes a resistive-type humidity measurement component and an NTC temperature measurement component, and connects to a high performance 8-bit microcontroller, offering excellent quality, fast response, anti-interference ability and cost-effectiveness.

Each DHT11 element is strictly calibrated in the laboratory that is extremely accurate on humidity calibration. The calibration coefficients are stored as programmes in the OTP memory, which are used by the sensor’s internal signal detecting process. The single-wire serial interface makes system integration quick and easy. Its small size, low power consumption and up-to-20 meter signal transmission making it the best choice for various applications, including those most demanding ones. The component is 4-pin single row pin package. It is convenient to connect and special packages can be provided according to users’ request.

Typical Circuit

DHT11 datasheet circuit


1. Low cost

2. 3 to 5V power and I/O

3. 2.5mA max current use during conversion (while requesting data)

4. Good for 20-80% humidity readings with 5% accuracy

5. Good for 0-50°C temperature readings ±2°C accuracy

6. No more than 1 Hz sampling rate (once every second)

7. Body size 15.5mm x 12mm x 5.5mm

8. 4 pins with 0.1″ spacing


DHT11 Datasheet PDF

DHT11 pdf



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