Description
Reviews
| Brand | - |
| Category | Electronic Components / Maker DIY / Computer Hardware, Monitors & Peripherals |
| Origin | - |
| Interface | I²C (Inter-Integrated Circuit) |
| Supply Voltage | 1.71V to 5.5V |
| Temperature Range | -40°C to +125°C |
| Humidity Range | 0% to 100% RH |
| Temperature Accuracy | ±0.2°C (typical) |
| Humidity Accuracy | ±1.8% RH (typical) |
| Package Type | DFN Package with Probe Cable |
| Module Dimensions | 20mm x 15mm x 5mm |
| Compatibility | Arduino, Raspberry Pi, ESP32 |
| Communication Protocol | Standard I²C up to 1 MHz |
Anonymous
Mar 16, 2026
Rating: 5/5
Perfect for climate monitoring
Using this in my automated greenhouse setup. Humidity readings match my calibrated hygrometer perfectly.
Anonymous
Mar 15, 2026
Rating: 3/5
Works but docs are sparse
The module itself is fine but I had to search online for the right library examples.
Anonymous
Mar 11, 2026
Rating: 5/5
Excellent accuracy for IoT projects
Swapped my old SHT30 for this. The response time is noticeably faster and the readings are stable.
Anonymous
Feb 05, 2026
Rating: 4/5
Good sensor, careful with wiring
Works great once connected properly. The pins are small so make sure you have a good soldering iron.
Anonymous
Jan 27, 2026
Rating: 5/5
Best in class for price
Low power consumption and high reliability. Highly recommend for battery powered nodes.
Q: Does this work with 3.3V logic?
A: Yes, the SHT40 supports voltage ranges from 1.71V to 5.5V.
Q: How long is the probe cable?
A: The standard module comes with a 10cm cable, but custom lengths are available upon request.
Q: Is calibration required out of the box?
A: No, each sensor is individually calibrated at the factory before shipping.
Q: Can I change the I2C address?
A: No, the I2C address is hardcoded in the sensor chip according to the datasheet.
Q: Is there a library available for Arduino?
A: Yes, the Sensirion SHT4x library is compatible and available in the Arduino Library Manager.
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