DHT22 / AM2302 Digital Temperature and Humidity Sensor Module
- Product SKU: KG230
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Specification
Description
DHT22 / AM2302 Digital Temperature and Humidity Sensor Module
If you are planning to build a project that measures temperature and humidity, this module is one of the most reliable options to consider. The dht22 temperature and humidity sensor offers accurate digital output and works seamlessly in various DIY electronics and IoT applications. When combined with dht22 arduino setups, it becomes extremely efficient for real-time monitoring and control systems. Moreover, the dht22 sensor remains a preferred choice for both hobby and industrial prototypes.The DHT22 Digital Temperature and Humidity Sensor Module AM2302 features a capacitive humidity sensor and a thermistor to measure ambient conditions. It delivers a clear digital signal through its data pin, making it simple to integrate without needing analog input. Although easy to use, the module requires steady timing for accurate data reading. Additionally, the dht22 temperature and humidity sensor provides new data every two seconds, which suits most applications where frequent updates are not required.
To connect the module, simply attach the left pin to 3–5V power, the center pin to your microcontroller’s data pin, and the rightmost pin to ground. Even though it uses a single wire for communication, it is not Dallas One Wire compatible, so each dht22 sensor must have its own data pin. When used with dht22 arduino libraries, the setup becomes beginner-friendly and highly dependable.
Note:
The product image may differ slightly in label or branding. The color of the connecting wire may vary depending on availability.
Technical Details
- Item Type: Sensor
- Model Type: Temperature and Humidity Sensor
- Rated Voltage (V): 3 to 5.5
- Model No.: AM2302
- Humidity Range: 0-100%RH
- Operating Temperature (°C): -40~80°C
- Precision: Humidity measurement : ±2%RH, Temperature measurement: ±0.5°C
- Length (mm): 43
- Width (mm): 15
- Height (mm): 10
- Weight (g): 6
Features
- High precision
- Capacitive type
- Full range temperature compensated
- Relative humidity and temperature measurement
- Calibrated digital signal
- Outstanding long-term stability
- Extra components not needed
- Long transmission distance
- Low power consumption
- 4 pins packaged and fully interchangeable
Applications :
- Weather Monitoring - Measures temperature and humidity.
- HVAC Systems - Controls environmental conditions.
- Smart Homes - Automates based on temperature and humidity.
- Industrial Control - Regulates factory conditions.
- Agriculture - Monitors climate for crops.
- Medical Devices - Ensures optimal environmental conditions.
- Data Logging - Records environmental data for analysis.
Integration with Arduino
Sample Code
Physical Attributes
- L x W x H (mm): 43 x 15 x 10
- Weight (gm): 6
Package Includes
- 1 x DHT22 / AM2302 Digital Temperature and Humidity Sensor Module
- Connecting Cable
Customer Reviews
Lots of examples on how to make these work online. Works exactly as expected.
I used this with a Heltec WiFi kit 32 OLED board. It is accurate and works great with the DHT lib as a DHT22. Have no issues with it at all and the price was excellent.
using Adafruit this works perfectly on Raspbian
Took a little while but got it working.
Unfortunately, I don’t have a controlled environment where I can test the accuracy of the devices. But they hooked up and ran without problem. I’ve got one attached to an ESP 8266 and have seen no issues whatsoever.
Hooked it up and it started sending data immediately.
Very easy to use and program. Accuracy is better than the DHT11
Works well. Easy to connect to nodeMCU.
worked as expected
I used these to replace some DHT11 modules which were wildly inaccurate (especially for humidity). These DHT22s work much better.
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