The Sensirion SHT20 Humidity and Temperature Sensor is a 3V I2C 3% SMD sensor that is designed to measure relative humidity and temperature. It features a high accuracy of ±3% RH and ±0.3°C, a low power consumption of 1.8 mA, and a wide operating temperature range of -40°C to +125°C. The SHT20 is suitable for a variety of applications, including HVAC, medical, and industrial. It is also suitable for use in consumer electronics, such as smartphones and tablets. The SHT20 is a small, low-cost, and easy-to-use sensor that is ideal for applications where accuracy and reliability are paramount.