The Testo 174 Windows driver is a software package that allows the Testo 174 series of data loggers (temperature, humidity, or other environmental sensors) to interface with a Windows PC for configuration, data retrieval, and analysis. These data loggers are commonly used in applications such as monitoring temperature-sensitive goods or environments in industries like pharmaceuticals, food storage, and logistics.

The driver is necessary to allow your computer to recognize the Testo 174 device when you connect it via USB or another interface. It also provides the software tools required for data logging and analysis.