Attributes

Brand	-
Category	Electronic Components / Maker DIY / Computer Hardware, Monitors & Peripherals
Origin	-
Interface Type	I2C
Supply Voltage	1.08V to 3.6V
Temperature Range	-40°C to 125°C
Humidity Range	0% to 100% RH
Temperature Accuracy	±0.1°C
Humidity Accuracy	±1.8% RH
Communication Protocol	I2C Fast Mode Plus
Board Dimensions	25mm x 17mm
Pin Header Pitch	2.54mm
Module Weight	3.2g

5 reviews

Anonymous

Apr 03, 2026

Rating: 4/5

Good Value

Works well but remember you might need external pull-up resistors depending on your microcontroller.

Anonymous

Apr 02, 2026

Rating: 5/5

Excellent Precision

Used this for a weather station project and the readings are very stable. Easy to connect with Arduino.

Anonymous

Mar 25, 2026

Rating: 3/5

Confusing Pins

Documentation could be clearer on the pinout for specific voltage levels. Works once figured out.

Anonymous

Mar 10, 2026

Rating: 5/5

Stable Readings

Very stable over time. No drift observed after a week of continuous operation.

Anonymous

Feb 01, 2026

Rating: 5/5

Easy to Integrate

Library support is great. Got it up and running in less than 10 minutes.

5 FAQ

Q: Is 5V logic safe for this module?

A: The sensor operates at 1.08V to 3.6V. Please use a level shifter if connecting to 5V logic systems.

Q: What is the difference between SHT40 and SHT45?

A: The main difference lies in the accuracy tiers. SHT45 offers the highest precision among the series.

Q: Which library do you recommend?

A: We recommend the Adafruit SHT4X library for easy integration with most platforms.

Q: Can I use this outdoors?

A: The module itself is not waterproof. You should place it in a breathable enclosure for outdoor use.

Q: What is the default I2C address?

A: The default I2C address is typically 0x44, but it can vary based on specific chip configuration.

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