Description
Reviews
| Brand | - |
| Category | Electronic Components / Maker DIY / Computer Hardware, Monitors & Peripherals |
| Origin | - |
| Brand | ASAIR (Aosong) |
| Model Number | DHT30 |
| Communication Interface | I²C |
| Operating Voltage | 1.7V to 3.6V DC |
| Temperature Range | -40°C to 80°C |
| Humidity Range | 0% to 100% RH |
| Temperature Accuracy | ±0.2°C |
| Humidity Accuracy | ±2% RH |
| Package Type | DFN-8 Module |
| Primary Application | Industrial & Environmental Monitoring |
Anonymous
Mar 31, 2026
Rating: 5/5
Upgrade from DHT22
Much faster response time and the I2C address is easy to configure. Highly recommend for new projects.
Anonymous
Mar 30, 2026
Rating: 5/5
Perfect for industrial use
We deployed these across our warehouse. They handle the temperature fluctuations well and the accuracy is consistent.
Anonymous
Mar 28, 2026
Rating: 4/5
Great sensor, mind the voltage
Works great with ESP32. Just remember it is 3.3V logic, so level shift if using with 5V boards. Otherwise flawless.
Anonymous
Mar 07, 2026
Rating: 5/5
Reliable and compact
The module form factor is very convenient. Saves time on PCB design. Humidity readings match my calibrated hygrometer.
Anonymous
Jan 26, 2026
Rating: 5/5
Excellent accuracy for the price
I integrated this into a data logging system. The I2C interface makes wiring much cleaner than the single-wire DHT22. Readings are stable.
Q: How often can I poll the sensor?
A: For normal mode, 1Hz is recommended. Low power mode allows for slower polling to conserve energy.
Q: What is the I2C address?
A: The default I2C address is 0x44. Some variants may allow address selection via pins, please refer to the datasheet.
Q: Does it come with a library for Arduino?
A: Yes, it is compatible with popular sensor libraries like Adafruit SHT30 or generic I2C humidity libraries.
Q: Is the module waterproof?
A: The sensor element is not waterproof. Please use an appropriate enclosure with ventilation for outdoor or humid environments.
Q: Is this compatible with 5V microcontrollers?
A: The sensor operates at 1.7V to 3.6V. If using a 5V MCU, please use a logic level converter for the I2C lines to prevent damage.
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