Attributes

Brand	-
Category	Robotics / STEM Teaching Tools / Sensors
Origin	-
Interface	I2C (Inter-Integrated Circuit)
Operating Voltage	2.1V to 3.6V
Temperature Range	-40°C to +125°C
Humidity Range	0% to 100% RH
Temperature Accuracy	±0.3°C (typical at 25°C)
Humidity Accuracy	±2% RH (typical at 25°C)
Response Time	8 seconds (tau63% for humidity)
Package Type	DFN-8 Surface Mount
Power Consumption	1.5 µA (average at 1 measurement/sec)
Compatibility	SHT20, SHT21, SHT30, SHT31, SHT35, SHT40, SHT41, SHT45

6 reviews

Anonymous

Mar 27, 2026

Rating: 4/5

Reliable but needs calibration

I bought a batch of ten for my automated greenhouse system. Nine out of ten worked flawlessly right out of the box. One needed a slight offset adjustment in the code, but overall performance is solid.

Anonymous

Mar 25, 2026

Rating: 5/5

Fast response time

Compared to my old sensors, these react very quickly to changes in humidity when I breathe on them or bring them near a kettle. Highly recommended for real-time monitoring.

Anonymous

Mar 19, 2026

Rating: 4/5

Small form factor is a plus

The module is tiny, which made it easy to fit inside a custom 3D printed enclosure. The only downside is that the pins are close together, so soldering requires a steady hand.

Anonymous

Mar 15, 2026

Rating: 5/5

Low power consumption confirmed

Using this in a battery-powered IoT node. The sleep current is genuinely low as specified in the datasheet. My batteries are lasting much longer than with the older DHT22 modules.

Anonymous

Mar 15, 2026

Rating: 5/5

Perfect for Arduino Projects

These sensors are incredibly easy to interface with my Arduino Uno. The I2C communication is stable, and the readings match my calibrated reference meter almost perfectly. Great value for prototyping.

Anonymous

Mar 03, 2026

Rating: 5/5

Great for thesis data logging

Needed precise environmental data for my university project. The consistency of these SHT modules over a 3-week continuous run was impressive. No drift observed.

5 FAQ

Q: Is there a library available for ESP32?

A: Yes, there are several open-source libraries available for ESP32, such as the Adafruit SHT31 library or the Sensirion official driver, which are compatible with the SHT20/30/40 series.

Q: Does this module work with 5V logic levels like standard Arduino?

A: The sensor operates at 2.1V to 3.6V. While many breakout boards include a voltage regulator and level shifters for 5V compatibility, please check your specific board's schematic. If using the bare chip, do not connect directly to 5V logic without level shifting.

Q: What is the difference between SHT30 and SHT35?

A: The primary difference lies in accuracy. The SHT35 offers higher precision (±0.1°C temperature, ±1.5% RH) compared to the SHT30 (±0.3°C temperature, ±2% RH). Both share the same footprint and interface.

Q: How do I clean the sensor if it gets dusty?

A: Do not touch the sensing element directly. Use compressed air to gently blow away dust. Avoid using liquids or solvents, as they can damage the polymer sensing layer and void the warranty.

Q: Can I use multiple sensors on the same I2C bus?

A: Yes, you can connect multiple sensors to the same I2C bus. However, ensure each has a unique address if your specific variant supports address selection, or use an I2C multiplexer if they share a fixed address.

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