Name: DHT22 Temperature and Humidity Sensor Module (AM2302)
SKU: 2165
Availability: InStock

DHT22 Temperature and Humidity Sensor Module (AM2302)

GST

The DHT22 Temperature Humidity Sensor is a high-accuracy sensor used to measure temperature and relative humidity. It is widely used with Arduino Uno R3, ESP8266, and ESP32 projects.

The DHT22 (also known as AM2302) is a digital sensor capable of measuring both temperature and humidity with better accuracy and a wider range than the DHT11.

It contains a capacitive humidity sensing element and a thermistor for temperature measurement. The sensor outputs calibrated digital data through a single-wire communication interface, making it easy to connect with microcontrollers.

The DHT22 is commonly used in weather stations, greenhouse monitoring, smart home automation, and environmental monitoring systems.

Key Features

Measures both temperature and humidity
High accuracy compared to DHT11
Digital single-wire output
Low power consumption
Factory calibrated sensor
Compatible with Arduino, ESP8266, and ESP32

Technical Specifications

Parameter	Value
Operating Voltage	3.3V – 6V DC
Temperature Range	-40°C to +80°C
Temperature Accuracy	±0.5°C
Humidity Range	0% to 100% RH
Humidity Accuracy	±2% to ±5% RH
Output Type	Digital
Sampling Rate	0.5 Hz (1 reading every 2 seconds)