A
Anonymous
Apr 04, 2026
Rating: 5/5
Fast Delivery
Arrived in an anti-static bag. Ready to use immediately. Packaging was secure and professional.
Description
SHT20/21/30/31/35/40/41/45 Digital Temperature and Humidity Sensor Module I2C Interface Communication
Reviews
Attributes
| Brand | - |
| Category | Electronic Components / Maker DIY / Computer Hardware, Monitors & Peripherals |
| Origin | - |
| Communication Interface | I²C (Inter-Integrated Circuit) |
| Supply Voltage | 3.3V to 5.5V DC |
| Temperature Measurement Range | -40°C to +125°C |
| Humidity Measurement Range | 0% to 100% RH |
| Temperature Accuracy | ±0.3°C (typical) |
| Humidity Accuracy | ±2% RH (typical) |
| Signal Response Time | 8 seconds (63% RH) |
| Board Dimensions | 25mm x 15mm x 5mm |
| Pin Header | 4-Pin Male Header Included |
| Storage Condition | -40°C to +70°C |
5 reviews
A
Anonymous
Mar 06, 2026
Rating: 5/5
Great for Arduino Projects
Works perfectly with the standard library. Readings are stable and easy to integrate into my weather station.
A
Anonymous
Feb 28, 2026
Rating: 5/5
Accurate Readings
Compared with a professional hygrometer, the match was very close. Highly recommend for precision needs.
A
Anonymous
Feb 19, 2026
Rating: 5/5
IoT Project Success
Used in my smart home system with ESP32. No connectivity issues over the past month of operation.
A
Anonymous
Jan 22, 2026
Rating: 4/5
Good Value
Works well but needs external pull-up resistors on the I2C lines depending on your setup. Otherwise solid.
5 FAQ
Q: What is the maximum recommended wire length?
A: For reliable I²C communication, we recommend keeping wire lengths under 1 meter without extenders.
Q: Is this module compatible with 5V Arduino Uno?
A: Yes, most breakout boards support 3.3V to 5.5V input. Please check the specific model voltage regulator.
Q: Does the sensor require user calibration?
A: No, these sensors are factory calibrated. No user calibration is needed for general applications.
Q: Which library should I use for coding?
A: Popular libraries like Adafruit SHT31 or the official Sensirion libraries work well with these modules.
Q: What is the main difference between SHT30 and SHT40?
A: The SHT40 is newer with better performance in high humidity and a smaller package size compared to SHT30.
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