What is the function of a data logger?

A data logger is a specialized instrument used to automatically record measurement data over a period of time. Its primary function is to collect and store data for later analysis, making it invaluable in various applications such as environmental monitoring, process control, and scientific research. The recorded data can include parameters like temperature, humidity, pressure, or other relevant measurements that can be crucial for assessing trends, identifying anomalies, or making informed decisions in process management.

While displaying real-time data can be an added feature of some data loggers, it does not capture the essence of what a data logger primarily does, which is focused on recording information for future review rather than merely showing it live. Similarly, data loggers are not designed to calibrate other devices nor are they meant to control process parameters directly; rather, they serve as tools for data collection that can be analyzed to inform such processes.