Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Sensors |
| Origin | - |
| Interface | I2C |
| Operating Voltage | 1.8V - 3.6V |
| Temperature Range | -40°C to +80°C |
| Humidity Range | 0% to 100% RH |
| Temperature Accuracy | ±0.3°C |
| Humidity Accuracy | ±2% RH |
| Response Time | < 2 seconds |
| Package Type | DFN-8 |
| Communication Protocol | Standard I2C |
| Upgrade From | DHT11/DHT22 |
Anonymous
Mar 25, 2026
Rating: 5/5
Easy to integrate
Found plenty of libraries for Arduino and Python that support this out of the box. The documentation is clear, and the module arrived well-packaged.
Anonymous
Mar 23, 2026
Rating: 4/5
Great sensor, needs pull-up resistors
Works flawlessly with my ESP32. Just remember that you need external pull-up resistors on the SDA and SCL lines if your board doesn't have them built-in. Once set up, it's rock solid.
Anonymous
Mar 16, 2026
Rating: 4/5
Solid upgrade
Good precision for consumer-grade electronics. It handles condensation better than the DHT11 did in my bathroom exhaust project. Would buy again.
Anonymous
Mar 09, 2026
Rating: 5/5
Much better than the old DHT11
The I2C interface makes wiring so much cleaner compared to the single-wire protocol of the DHT11. Readings are stable and fast. Highly recommended for any new IoT project.
Anonymous
Mar 05, 2026
Rating: 5/5
Fast response time
The response time is significantly faster than previous generations. I can log data every second without worrying about stale readings. Excellent value for the price.
Anonymous
Mar 03, 2026
Rating: 5/5
Perfect for my plant monitor
I replaced all my old sensors with these DHT20 modules. The accuracy improvement is noticeable, especially in high humidity conditions. No more erratic spikes in data.
Q: What is the default I2C address?
A: The default I2C address for the DHT20 is typically 0x38. However, please refer to the specific datasheet of your manufacturer as some variations might exist.
Q: How often can I poll data from this sensor?
A: The sensor has a conversion time of less than 2 seconds. We recommend polling no faster than once every 2 seconds to ensure accurate readings and prevent bus locking.
Q: Is this module compatible with 5V Arduino boards?
A: Yes, but since the operating voltage is 1.8V-3.6V, you should use a logic level shifter or a breakout board with a voltage regulator when connecting to a 5V system to avoid damage.
Q: Can I use this outdoors directly?
A: The sensor chip itself is not waterproof. You must house it in a weatherproof enclosure with a breathable membrane to protect it from rain and direct water exposure while allowing air flow.
Q: Does it come with header pins soldered?
A: This item is sold as an integrated digital module. Most versions come with header pins pre-soldered, but please check the product images for the specific batch you are ordering.
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