Attributes

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

6 reviews

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.

5 FAQ

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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