Testo 610 Humidity Temperature Meter

An Electronic Data Logger is an electronic device or a computer program that continuously records data over time in relation to the location either using a built-in instrument or through an externally interfaced one. It is an instrument that monitors and records changes in conditions over time. They can be single, stand-alone units or consist of multiple channels. Electronic Data Logger can measure a multitude of physical parameters to provide an environmental profile in which the data logger is placed. 

Specification