DHT11 Temperature and Humidity Sensor Module for Arduino Raspberry Pi

The DHT11 is a low-cost digital temperature and humidity sensor for Arduino and Raspberry Pi projects. It uses a capacitive humidity sensor and a thermistor, and sends a digital signal on one data pin, so no analogue input pins are needed.

Key Features

• Digital output on a single data pin
• Humidity range: 20% to 90% RH (0 to 50°C, with temperature compensation)
• Temperature range: 0 to 50°C
• Humidity accuracy: ±5.0% RH
• High reliability and long-term stability

Using the Sensor

New data is available once every 2 seconds, so readings can be up to 2 seconds old. Reading the data requires careful timing, so use a library for your board.