The 1-101415-01 part from Sensirion is an air temperature and relative humidity sensor. It is a digital humidity sensor with a single-wire digital interface. It provides fast, accurate measurements with a typical accuracy of ±2%RH and ±0.2°C. The sensing element is a capacitive polymer, shielded from dirt, dust and external noise. The 1-101415-01 is used for a variety of applications, including HVAC, humidity monitoring, process control and environmental sensing.