The Seeed Studio High Accuracy Temperature and Humidity Sensor is a high precision, digital sensor that has been designed for applications that require accuracy and reliability. It provides temperature, humidity, and atmospheric pressure readings with relative and absolute accuracy of ±0.3°C, ±3%RH, and ±3 hPa respectively, making it suitable for more demanding applications. It has a fast response time, a small footprint, and a user-configurable alert function to notify users of any unexpected changes in the environment. The device is powered through a single 1.8–3.6 V supply, and is programmed and configured through a simple I2C or SPI interface.