The Adafruit Sensirion SHTC3 is a compact temperature and humidity sensor with a true I2C interface, offering ±2% relative humidity and ±0.2 °C temperature accuracy. It's a cost-effective option from Sensirion's range, well suited for general-purpose environmental monitoring.

The breakout includes a voltage regulator and level shifting, making it compatible with both 3.3 V and 5 V systems. STEMMA QT / Qwiic connectors allow solderless hookup, and Arduino and CircuitPython libraries are available for quick integration.

Key Features

• Relative Humidity Accuracy – ±2% RH typical
• Temperature Accuracy – ±0.2 °C typical
• True I2C Interface – Address 0x70
• Low Power – Suitable for battery-powered applications
• 3.3 V / 5 V Compatible – Onboard voltage regulator and level shifting
• STEMMA QT / Qwiic Connectors – Solderless I2C connection and daisy-chaining

Also Consider

• SHT40 Sensor – Newer SHT4x generation with ±1.8% RH and additional features like variable power heater
• SHT45 Sensor – Highest precision option with ±1.0% RH and ±0.1 °C accuracy

Ideal For

• General-purpose environmental monitoring
• Weather stations and data logging
• HVAC and climate control systems
• Indoor comfort monitoring

Package Contents

• 1× Adafruit Sensirion SHTC3 Temperature & Humidity Sensor Breakout
• 1× Header strip (soldering required for breadboard use)

Resources

• Adafruit SHTC3 Guide (Arduino & CircuitPython)