DHT11 Temperature and Humidity Sensor (Digital Temperature & Humidity Sensor)

The DHT11 Temperature and Humidity Sensor is a compact digital environmental sensor designed to measure ambient temperature and relative humidity for basic monitoring applications. It combines a capacitive humidity sensing element with an NTC temperature sensor and an integrated digital signal processor, providing factory-calibrated digital output through a single-wire interface. The DHT11 is easy to interface with Arduino, ESP32, ESP8266, STM32, Raspberry Pi (with compatible libraries), and other microcontrollers, making it ideal for weather stations, home automation, IoT devices, educational projects, and environmental monitoring systems.

Key Features -

• Digital temperature and humidity measurement

• Factory-calibrated digital output

• Single-wire communication interface

• Capacitive humidity sensing element

• Integrated NTC temperature sensor

• Low power consumption

• Stable and reliable performance

• Compact plastic package

• Easy interface with microcontrollers

• Suitable for indoor environmental monitoring

Specifications -

• Product type - Digital Temperature and Humidity Sensor

• Model - DHT11

• Operating voltage - 3.3V to 5V DC

• Humidity measurement range - 20% to 90% RH

• Humidity accuracy - Plus Minus 5% RH

• Temperature measurement range - 0C to 50C

• Temperature accuracy - Plus Minus 2C

• Output signal - Digital Single-Wire

• Sampling rate - 1Hz (One Reading per Second)

• Operating temperature - 0C to 50C

Applications -

• Weather stations

• Home automation

• IoT devices

• Environmental monitoring

• HVAC systems

• Educational electronics

• Smart agriculture

• DIY electronics projects