A
Anonymous
Apr 02, 2026
Rating: 5/5
ESP32 Perfect Match
Connected instantly using the Adafruit library. Very happy with the purchase.
Description
AHT20 Temperature and Humidity Sensor Module High-Precision Humidity Sensor Probe DHT11 Upgraded Version I2C
Reviews
Attributes
| Brand | - |
| Category | Electronic Components / Maker DIY / Computer Hardware, Monitors & Peripherals |
| Origin | - |
| Interface | I²C |
| Operating Voltage | 1.8V to 5.5V DC |
| Temperature Range | -40°C to +85°C |
| Humidity Range | 0% to 100% RH |
| Temperature Accuracy | ±0.5°C |
| Humidity Accuracy | ±2% RH |
| Communication Address | 0x38 (Default) |
| Package Style | Breakout Board with Headers |
| Response Time | Less than 5 Seconds |
| Compatibility | Arduino, ESP32, Raspberry Pi |
5 reviews
A
Anonymous
Feb 24, 2026
Rating: 5/5
Great Precision
Works much better than my old DHT11. The readings are stable and consistent.
A
Anonymous
Feb 04, 2026
Rating: 5/5
Compact and Reliable
Fits perfectly in my weather station project. Small footprint and easy to solder.
A
Anonymous
Jan 27, 2026
Rating: 4/5
Good but needs resistors
Make sure you have pull-up resistors on SDA/SCL lines for reliable communication.
A
Anonymous
Jan 23, 2026
Rating: 5/5
Stable Readings
No more fluctuating humidity values. This sensor is a significant upgrade.
5 FAQ
Q: Can I use this outdoors?
A: It is not waterproof; please use a protective enclosure for outdoor use.
Q: What library do you recommend?
A: We recommend the Adafruit AHTX0 library for easy integration.
Q: How many sensors on one bus?
A: Since the address is fixed, you need a multiplexer for multiple units on the same bus.
Q: Is the I²C address changeable?
A: No, the default address is fixed at 0x38 for this module.
Q: Does this work with 5V logic?
A: Yes, it supports operating voltages from 1.8V to 5.5V.
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