DHT22 AAM2302B Temperature & Humidity Sensor Module

Take your electronics projects to the next level with the DHT22 (AAM2302B) Temperature & Humidity Sensor Module. Designed for makers, hobbyists, students, and DIY electronics enthusiasts, this compact and reliable digital sensor delivers accurate real-time temperature and humidity readings — perfect for home automation, weather stations, Arduino/ESP8266 D1 Mini builds, and more.

Why Choose the DHT22 AAM2302B Sensor Module?

High Accuracy Readings: Measures temperature with ±0.5°C accuracy and relative humidity with ±2–5% RH — ideal for precision projects.
Wide Measurement Range: Temperature: -40°C to +80°C | Humidity: 0–100% RH.
Single-Wire Digital Output: Clean, noise-free digital signal communication — easy to integrate with Arduino, Raspberry Pi, ESP8266, D1 Mini, and other microcontrollers.
Compact Module Design: Pre-wired with a 3-pin interface (VCC, DATA, GND) and onboard pull-up resistor — no additional components needed.
Durable Probe Housing: Enclosed sensor probe protects internal components for reliable long-term performance.
Breadboard & Project Friendly: Compact form factor fits easily into prototyping setups, enclosures, and DIY builds.

Ideal Applications

Home automation & smart home systems
Indoor/outdoor weather monitoring stations
Greenhouse & plant environment monitoring
HVAC control and data logging
Electronics education & STEM learning projects
IoT sensor networks

Technical Specifications

Model: DHT22 / AAM2302B
Operating Voltage: 3.3V – 5.5V DC
Temperature Range: -40°C to +80°C (±0.5°C accuracy)
Humidity Range: 0–100% RH (±2–5% RH accuracy)
Output Signal: Single-wire digital serial
Sampling Rate: Once every 2 seconds
Interface: 3-pin (VCC / DATA / GND)
Compatible With: Arduino, ESP8266, D1 Mini, Raspberry Pi, and most microcontrollers

What's in the Box?

1 × DHT22 AAM2302B Temperature & Humidity Sensor Module

Perfect Companion for Your Projects

Whether you're building a sensor network, automating your home, or learning electronics, the DHT22 module is a staple component. Pair it with other DIY electronics building blocks for even more creative possibilities. Browse more components and craft supplies in our store:

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Frequently Asked Questions

Q: What is the DHT22 AAM2302B sensor module used for?

A: The DHT22 AAM2302B is a digital temperature and humidity sensor module widely used in electronics projects such as home automation, weather stations, greenhouses, HVAC monitoring, and IoT sensor networks. It works seamlessly with Arduino, ESP8266, D1 Mini, Raspberry Pi, and other common microcontrollers.

Q: How do I connect the DHT22 module to my microcontroller?

A: The module features a simple 3-pin interface — VCC (power), DATA (signal), and GND (ground). Connect VCC to a 3.3V or 5V supply, GND to ground, and DATA to any available digital input pin on your microcontroller. The onboard pull-up resistor means no extra components are required. Use the standard DHT22 library in the Arduino IDE for quick setup.

Q: What is the difference between DHT11 and DHT22?

A: The DHT22 offers significantly higher accuracy and a wider measurement range than the DHT11. The DHT22 measures temperatures from -40°C to +80°C with ±0.5°C accuracy, while the DHT11 is limited to 0–50°C. For humidity, the DHT22 provides ±2–5% RH accuracy versus ±5% for the DHT11, making it the preferred choice for more demanding applications.

Q: Is this module compatible with the D1 Mini (ESP8266)?

A: Yes! The DHT22 AAM2302B module is fully compatible with the D1 Mini (ESP8266), Arduino boards, Raspberry Pi, and virtually any 3.3V or 5V microcontroller platform. It is a popular choice for ESP8266-based IoT and Wi-Fi sensor projects.

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.