A
Anonymous
Mar 24, 2026
Rating: 5/5
Fast Response
Readings update quickly. Perfect for real-time logging applications.
Description
SHT40 Digital Temperature & Humidity Sensor
Reviews
Attributes
| Brand | - |
| Category | Electronic Components / Maker DIY / Computer Hardware, Monitors & Peripherals |
| Origin | - |
| Sensor Model | SHT40 |
| Communication Interface | UART TTL Serial |
| Operating Voltage | 3.3V - 5.5V DC |
| Temperature Range | -40°C to +125°C |
| Humidity Range | 0% to 100% RH |
| Temperature Accuracy | ±0.2°C |
| Humidity Accuracy | ±1.8% RH |
| Pin Configuration | VCC, GND, TX, RX |
| PCB Dimensions | 25mm x 15mm |
| Module Weight | 3.5 grams |
5 reviews
A
Anonymous
Feb 28, 2026
Rating: 5/5
Easy Integration
Connected to ESP32 without issues. TTL communication is straightforward.
A
Anonymous
Feb 03, 2026
Rating: 5/5
Great Accuracy
Works as expected for my weather station project. Readings are consistent.
A
Anonymous
Jan 31, 2026
Rating: 4/5
Good Value
Hardware is solid. Pin headers were slightly loose but soldered fine.
A
Anonymous
Jan 18, 2026
Rating: 5/5
Industrial Quality
Using in factory monitoring system. Stable performance over weeks.
5 FAQ
Q: Is this compatible with Arduino Uno?
A: Yes, it works via SoftwareSerial or hardware UART pins.
Q: What is the max cable length for TX/RX?
A: We recommend keeping UART cables under 1 meter for stable communication.
Q: Do you provide a library?
A: Yes, sample code and libraries are available on our GitHub repository.
Q: What is the default baud rate?
A: The default baud rate is 9600bps, configurable up to 115200bps.
Q: Is the module waterproof?
A: The PCB is not waterproof. Please use an enclosure for outdoor use.
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