Product Description
The DHT22 AM2302 Digital Temperature & Humidity Sensor is a widely used environmental sensor module capable of measuring both ambient temperature and relative humidity. It features a fully calibrated digital output using a single-wire communication interface, making it simple to interface with various microcontroller platforms such as Arduino, ESP32, STM32, and Raspberry Pi. The sensor provides reliable readings over a wide temperature range and humidity span, making it ideal for weather stations, HVAC monitoring, smart home applications, IoT environmental monitoring, and educational electronics projects.
Key Features
Digital temperature and humidity output
Temperature measurement range: −40°C to +80°C
Humidity range: 0% to 99.9% RH
±0.5°C temperature accuracy
±2% humidity accuracy
Single-wire digital communication
Compatible with Arduino, ESP32, Raspberry Pi
Package Includes
1 × DHT22 AM2302 Digital Temperature & Humidity Sensor Module
Technical Specifications
Parameter | Specification |
Sensor Model | AM2302 (DHT22) |
Output Type | Digital |
Temperature Range | −40°C to +80°C |
Humidity Range | 0% – 99.9% RH |
Temp Accuracy | ±0.5°C |
Humidity Accuracy | ±2% RH |
Interface | Single-wire Digital |
Operating Voltage | 3.3V – 5.5V |
Response Time | ~2 seconds |
Applications
Weather stations
HVAC systems monitoring
Smart home environmental sensing
IoT temperature & humidity monitoring
Embedded environmental systems
Educational electronics projects