The HDC1080 is a digital humidity sensor with integrated temperature sensor that provides excellent measurement accuracy at very low power. The HDC1080 operates over a wide supply range, and is a low cost, low power alternative to competitive solutions in a wide range of common applications. The humidity and temperature sensors are factory calibrated.
Please note that the specific sensor package is a 6WSON (not breadboard friendly).
In order to use it you will have to design a PCB or buy a ready to use module from 3rd party sellers from amazon for example: Amazon.de