Attributes

Brand	-
Category	Robotics / STEM Teaching Tools / Sensors
Origin	-
Sensor Model Compatibility	SHT40, SHT41, SHT45
Interface Protocol	I2C (Inter-Integrated Circuit)
Operating Voltage	1.71V to 3.6V DC
Temperature Range	-40°C to +125°C
Humidity Range	0% to 100% RH
Temperature Accuracy	±0.2°C (typical at 25°C)
Humidity Accuracy	±1.8% RH (typical at 25°C)
Board Dimensions	20mm x 15mm x 3mm
Connector Type	2.54mm Pitch Pin Header
Package Contents	1x Sensor Module, 1x Pin Header Strip

6 reviews

Anonymous

Mar 31, 2026

Rating: 5/5

Low power consumption

Ideal for battery-powered ESP32 projects. The sleep current is very low, allowing my device to run for weeks on a single charge. Highly recommended for remote sensing.

Anonymous

Mar 26, 2026

Rating: 4/5

Solid performance

Works well in high humidity environments. I noticed a slight lag in response time during rapid temperature changes, but for general monitoring, it is more than sufficient.

Anonymous

Mar 21, 2026

Rating: 5/5

Perfect for Arduino Projects

This module works flawlessly with my Arduino Uno. The I2C address was easy to find, and the readings are stable right out of the box. Great value for the price.

Anonymous

Mar 20, 2026

Rating: 5/5

Accurate and Reliable

I compared this against a calibrated lab sensor, and the deviation was negligible. Using it to monitor my indoor plant setup, and it has been running for months without issues.

Anonymous

Mar 15, 2026

Rating: 5/5

Fast Shipping and Quality Build

Arrived earlier than expected. The PCB looks clean, soldering points are solid, and the chip is securely mounted. No issues integrating it into my weather station.

Anonymous

Mar 11, 2026

Rating: 4/5

Good but needs pull-up resistors

The sensor itself is excellent. Just remember that you might need external pull-up resistors on the SDA and SCL lines depending on your microcontroller board. Documentation could be clearer on this.

5 FAQ

Q: Does it come with a library for Python?

A: While we do not provide a proprietary library, this sensor is supported by popular open-source libraries like Adafruit_CircuitPython_SHT4x and Sensirion's official GitHub repositories.

Q: Is this module compatible with Raspberry Pi?

A: Yes, this module is fully compatible with Raspberry Pi models that support I2C. You will need to enable the I2C interface in the Raspberry Pi configuration settings.

Q: Can this sensor be used outdoors?

A: The sensor chip itself is robust, but the PCB is not conformal coated or waterproof. For outdoor use, we recommend placing the module inside a breathable weatherproof enclosure.

Q: How do I calibrate the sensor?

A: These sensors come factory-calibrated and generally do not require user calibration. If you need to apply an offset in software, most libraries allow you to add a correction value to the raw output.

Q: What is the default I2C address?

A: The default I2C address for the SHT4x series on this module is typically 0x44. However, some variants allow address selection via a pin; please check the silkscreen on your specific board.

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