Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Sensors |
| Origin | - |
| Sensor Model | DHT11 / DHT20 / SHT30 / SHT40 Compatible |
| Output Interface | Digital I2C / Single-wire |
| Operating Voltage | 3.3V - 5V DC |
| Temperature Range | -40°C to +80°C (varies by model) |
| Humidity Range | 0% to 100% RH |
| Accuracy | ±2% RH, ±0.5°C (SHT40 model) |
| Response Time | < 8 seconds |
| PCB Dimensions | 15mm x 15mm x 5mm |
| Indicator | Power LED included |
| Application | Arduino, Raspberry Pi, IoT Projects |
Anonymous
Mar 20, 2026
Rating: 5/5
Reliable for greenhouse monitoring
Using four of these modules in my smart greenhouse setup. They handle the high humidity environment without issues and the data logs look accurate over the past month.
Anonymous
Mar 20, 2026
Rating: 5/5
Excellent precision on the SHT40
Upgraded from DHT11 to the SHT40 option available here. The difference in precision and response time is night and day. Highly recommended for serious projects.
Anonymous
Mar 17, 2026
Rating: 4/5
Solid basic sensor
Works as described. The library support for Arduino is excellent. Just make sure you select the correct model in your code since this listing covers multiple chip types.
Anonymous
Mar 13, 2026
Rating: 4/5
Good value, clear documentation
The module works well right out of the box. The only reason for 4 stars instead of 5 is that the pin spacing is slightly tight for standard breadboards, but jumper wires solve that easily.
Anonymous
Mar 09, 2026
Rating: 5/5
Perfect for my weather station
I bought the SHT30 version for my outdoor weather project. The I2C communication is stable and the readings are consistent with my professional thermometer. Easy to wire up to an ESP32.
Anonymous
Mar 07, 2026
Rating: 5/5
Fast shipping and great performance
Needed these for a school project on home automation. The DHT20 sensor provides quick updates and the indicator light helps confirm power connection instantly.
Q: Do you provide sample code for Raspberry Pi?
A: Yes, we provide a link to a GitHub repository in the product manual containing Python examples for Raspberry Pi and C++ examples for Arduino.
Q: Can I use this outdoors in the rain?
A: The sensor module itself is not waterproof. You must house it in a waterproof enclosure with ventilation to protect it from direct rain while allowing air flow for accurate readings.
Q: Does this module work directly with 5V Arduino Uno?
A: Yes, the module supports 3.3V to 5V input, so it is fully compatible with the Arduino Uno without needing a level shifter.
Q: Is the I2C address configurable?
A: For most models like the SHT30 and SHT40, the I2C address is fixed by the manufacturer (usually 0x44 or 0x45). Please check the specific datasheet for the chip variant you receive.
Q: What is the difference between the DHT11 and SHT30 options?
A: The DHT11 is a basic, lower-cost sensor with lower accuracy and slower response. The SHT30 offers higher precision, faster response times, and better stability in varying conditions.
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