DHT22 Digital Temperature Humidity Sensor Module

Description

The DHT22 is a high-precision digital temperature and humidity sensor designed for applications that require better accuracy and wider measurement range than DHT11.
It provides a calibrated digital output, making it easy to connect with Arduino, ESP32, ESP8266, Raspberry Pi, and other microcontrollers.

DHT22 is ideal for IoT systems, smart home automation, weather stations, greenhouse monitoring, and professional electronics projects, where reliable environmental data is essential.

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⭐ Key Features

• Measures Temperature & Humidity

• Higher accuracy than DHT11

• Wider temperature & humidity range

• Factory-calibrated digital output

• Low power consumption

• Suitable for indoor & semi-outdoor use

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🔧 Technical Specifications

• Sensor Type: DHT22

• Temperature Range: -40°C to +80°C

• Temperature Accuracy: ±0.5°C

• Humidity Range: 0% – 100% RH

• Humidity Accuracy: ±2% – ±5% RH

• Operating Voltage: 3.3V – 6V

• Output Signal: Digital

• Sampling Rate: 0.5 Hz (1 reading every 2 seconds)

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🔌 Compatibility

• Arduino UNO / Nano / Mega

• ESP32 / ESP8266

• Raspberry Pi

• STM32

• IoT & Smart Home Projects

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🎯 Applications

• Weather Stations

• Smart Home Automation

• IoT & Cloud Monitoring

• Greenhouse & Agriculture Monitoring

• Robotics & Embedded Systems

• School / University Projects

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📦 Package Includes

• 1 × DHT22 Temperature & Humidity Sensor

DHT11

Arduino UNO