The 7Semi SHT41 Temperature & Humidity Sensor Breakout (I²C Qwiic) is a compact and ultra-precise environmental sensing module based on Sensirion’s advanced CMOSens® technology. It accurately measures humidity from 0–100 % RH with ±1.5 % typical and ±1.8 % overall accuracy, and temperature from –40 °C to 125 °C with ±0.2 °C precision. Operating on 3.3–5 V with low power consumption (~0.45 mA active, <0.15 mA sleep), the board uses I²C communication and features a plug‑and‑play Qwiic/STEMMA‑QT connector, requiring no soldering. Its durable design and seamless integration make it ideal for smart weather stations, HVAC systems, industrial automation, IoT devices, and environmental monitoring where reliable, high‑accuracy readings matter.