Attributes

Brand	-
Category	Robotics / STEM Teaching Tools / Sensors
Origin	-
Sensor Model	SHT20/SHT30/SHT40
Interface Type	I2C (Inter-Integrated Circuit)
Probe Material	Stainless Steel 304
Operating Voltage	3.3V to 5.5V DC
Temperature Range	-40°C to +125°C
Humidity Range	0% to 100% RH
Accuracy (Temp)	±0.2°C typical
Accuracy (Humidity)	±2% RH typical
Cable Length	1 Meter (Customizable)
Application	Industrial Monitoring, HVAC, Greenhouse

6 reviews

Anonymous

Mar 29, 2026

Rating: 5/5

Fast response time

Very impressed with how quickly the sensor reacts to changes in humidity. The build quality feels premium compared to plastic alternatives.

Anonymous

Mar 24, 2026

Rating: 5/5

Industrial grade quality

Bought five units for a server room monitoring system. All sensors returned identical readings within tolerance. The stainless steel housing gives me confidence in longevity.

Anonymous

Mar 22, 2026

Rating: 4/5

Great accuracy, long cable is a plus

Using this in a greenhouse environment. The humidity readings are spot on. The only minor issue is the connector could be slightly more robust, but overall excellent value.

Anonymous

Mar 17, 2026

Rating: 4/5

Good documentation support

The module works great once you find the right library. Support team helped me resolve an addressing conflict quickly. Would recommend for intermediate users.

Anonymous

Mar 12, 2026

Rating: 5/5

Perfect for my weather station project

The stainless steel probe is very durable and the I2C communication was easy to set up with my Arduino. Readings are consistent and match my calibrated reference meter.

Anonymous

Mar 04, 2026

Rating: 5/5

Reliable SHT40 performance

Upgraded from an older DHT sensor and the difference in speed and accuracy is night and day. The metal probe handles condensation well without corrosion.

5 FAQ

Q: Does this come with a library for ESP32?

A: We do not provide a proprietary library, but this sensor is fully supported by the popular 'Adafruit SHT31' or 'SparkFun SHTC3' libraries available in the Arduino IDE manager, which work perfectly with ESP32.

Q: How long is the warranty period?

A: This product comes with a standard 12-month manufacturer warranty covering defects in materials and workmanship under normal use conditions.

Q: Is this compatible with Raspberry Pi GPIO pins?

A: Yes, the module operates at 3.3V logic levels which are directly compatible with Raspberry Pi GPIO. Ensure you connect VCC to 3.3V and use pull-up resistors on SDA and SCL lines.

Q: Can the stainless steel probe be submerged in water?

A: The probe is designed for high-humidity environments and can handle condensation, but it is not IP68 rated for continuous submersion in liquids. Please avoid fully immersing the electronics end.

Q: What is the default I2C address?

A: The default I2C address is typically 0x44. Some batches may also respond to 0x45 depending on the specific chip configuration. You can scan the bus to confirm.

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