For the datasheet please visit the product page https://www.sciosense.com/products/relative-humidity-and-temperature-sensors/ens210-relative-humidity-and-temperature-sensor/
Evaluation Software: ENSDashboard is a Windows application that supports monitoring and logging of sensor measurements. It can be downloaded here https://github.com/sciosense/ENSdashboard
This software is intended to evaluate all functions of the desired product using the evaluation kit for ENS210, see https://www.sciosense.com/products/relative-humidity-and-temperature-sensors/evaluation-kit-for-ens210/
C++ drivers for the sensor can be found here https://github.com/sciosense/ENS210_driver