Examples of datalogging in everyday use include weather stations, and traffic flow systems (the blue cameras by the side of main roads). These systems all work 24 hours a day, 7 days a week, and only stop occasionally for maintenance work. Data logging systems can work in almost all locations, including many where humans cannot operate safely, e.g. the bottom of the sea, or inside a nuclear reactor. Data logging systems can be used to provide feedback to control systems that operate other devices.
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