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Home / Computer Hardware, Monitors & Peripherals / CJ-GXHT30 Digital Temperature and Humidity Sensor Module I2C Protocol Full Replacement for SHT30

Attributes

Brand -
Category Electronic Components / Maker DIY / Computer Hardware, Monitors & Peripherals
Origin -
Interface I2C
Supply Voltage 2.4V to 5.5V
Temperature Range -40°C to +125°C
Humidity Range 0% to 100% RH
Temperature Accuracy ±0.2°C
Humidity Accuracy ±2% RH
Communication Protocol I2C Standard Mode
Package Type Breakout Board
Board Dimensions 20mm x 15mm
Chip Compatibility SHT30 Drop-in Replacement

5 reviews

A

Anonymous

Feb 28, 2026

Rating: 5/5

Perfect for Arduino Projects

Works flawlessly with the standard SHT30 libraries. Readings are stable and accurate compared to my calibrated meter.

A

Anonymous

Feb 15, 2026

Rating: 5/5

Exact SHT30 Replacement

Needed this for a repair job where the original SHT30 was unavailable. This CJ-GXHT30 worked without any code changes.

A

Anonymous

Feb 07, 2026

Rating: 5/5

Reliable Data

Using these in a greenhouse monitoring system. They have been running for 3 months without drift.

A

Anonymous

Jan 31, 2026

Rating: 3/5

Works but needs pull-ups

Didn't work initially until I added external pull-up resistors to the I2C lines. Might be obvious to pros, but beginners beware.

A

Anonymous

Jan 21, 2026

Rating: 4/5

Good sensor, pinout unclear

The sensor itself is great, but the silk screen on the board was a bit faint. Once wired correctly, it works well.

5 FAQ

Q: Is there a specific Arduino library?

A: Yes, most standard SHT30 libraries work perfectly with this module.

Q: How fast can I sample data?

A: You can configure measurement rates from 0.5 Hz up to 10 Hz depending on accuracy mode.

Q: Can I use this outdoors?

A: The chip is sensitive to moisture condensation directly on the die. We recommend using an enclosure for outdoor use.

Q: What is the default I2C address?

A: The default unicast address is 0x44. Alternative address 0x45 is selectable via hardware.

Q: What logic level does this support?

A: It supports both 3.3V and 5V logic levels safely.

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