AM2302 DHT22 Temperature & Humidity Sensor Module for Arduino
AM2302 DHT22 Temperature & Humidity Sensor Module for Arduino
AM2302 / DHT22 High-Precision Temperature & Humidity Sensor Module
Take your Arduino or microcontroller projects to the next level with the AM2302 DHT22 Digital Temperature & Humidity Sensor Module. Engineered for accuracy and reliability, this compact sensor delivers stable, calibrated readings across a wide environmental range — making it a go-to component for hobbyists, engineers, and makers alike.
Key Specifications
- Operating Voltage: 5V
- Interface: Digital bidirectional single-bus output
- Temperature Range: -40°C to 80°C (±0.5°C accuracy)
- Humidity Range: 20%–90% RH (±2% RH accuracy)
- Dimensions: Approx. 4.5 × 2.3 × 0.7 cm (1.77 × 0.91 × 0.28 in)
- Package Includes: 1 × AM2302 DHT22 Sensor Module
- Country of Origin: Made in Mainland China
Product Highlights
- ✅ Ultra-low energy consumption — ideal for battery-powered projects
- ✅ Long transmission distance — reliable signal over extended cable runs
- ✅ Fully automated calibration — no manual adjustment needed
- ✅ Capacitive humidity sensing element — highly responsive and accurate
- ✅ Fully interchangeable — drop-in compatible with DHT22-based designs
- ✅ Standard digital single-bus output — easy integration with Arduino, Raspberry Pi, and other platforms
- ✅ Long-term stability — consistent performance over time
- ✅ High-precision temperature sensing element — tight ±0.5°C tolerance
Wide Range of Applications
The AM2302 DHT22 is suitable for a broad variety of applications, including:
- HVAC systems and dehumidifiers
- Testing and inspection equipment
- Consumer electronics and home appliances
- Automotive environmental monitoring
- Automatic control and data loggers
- Humidity controllers and weather stations
- Industrial and laboratory monitoring
Easy to Use
This module features a simple 3-pin interface (VCC, DATA, GND), making it straightforward to wire up with any Arduino or compatible microcontroller. Paired with widely available libraries, you can start reading temperature and humidity data in minutes — no soldering or complex setup required.
Note: Due to manual measurement, there may be a ±5mm dimensional deviation. Slight color differences may exist between product images and the actual item due to lighting conditions.
Learn more: OSHA guidance on hand and power tools
Frequently Asked Questions
Q: Is the AM2302 DHT22 sensor module compatible with Arduino and Raspberry Pi?
A: Yes! The AM2302 DHT22 sensor module uses a standard digital single-bus interface and is fully compatible with Arduino, Raspberry Pi, ESP8266, ESP32, and most other popular microcontroller platforms. Numerous open-source libraries are available to get you up and running quickly.
Q: What is the difference between the DHT22 and DHT11 sensors?
A: The DHT22 (AM2302) offers significantly higher accuracy (±0.5°C for temperature and ±2%RH for humidity) and a wider measurement range (-40°C to 80°C) compared to the DHT11, which has lower accuracy and a narrower range. The DHT22 is the preferred choice for projects requiring precise environmental monitoring.
Q: What voltage does the AM2302 DHT22 sensor require?
A: This sensor module operates at 5V DC, making it directly compatible with standard Arduino boards. Always ensure your power supply is stable to maintain accurate readings.
Q: What is included in the package?
A: Each order includes 1 × AM2302 DHT22 Digital Temperature & Humidity Sensor Module. No additional accessories are included.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.