About this item

The Si7021 Temperature & Humidity Sensor Breakout Board from Adafruit is a compact and precise I²C sensor module designed for accurate environmental monitoring. It offers a typical relative humidity accuracy of ±2% within the 0–80% RH range and a temperature accuracy of ±0.3°C from -10°C to 85°C. Operating on a 3.3V supply, the board includes onboard I²C level shifting circuitry, making it compatible with various microcontrollers. Its small form factor (17.8mm x 15.3mm) and low power consumption (approximately 1.0g weight) make it ideal for applications like weather stations, HVAC systems, and IoT devices. The breakout board features a PTFE filter to protect the sensor and comes fully assembled and tested for easy integration into projects.