A data logger records measurements such as temperature, relative humidity, light intensity, ultraviolet radiation, and other things over a period of time. Data loggers are small, battery-powered devices that are equipped with a microprocessor, data storage and sensor. Software on a personal computer views or processes the collected data. Logging parameters are selected and set (sampling intervals, start time, etc). The logger is then disconnected and taken to the desired location. The logger records each measurement and stores it in memory along with the time and date. The logger is then reconnected to the computer and used to read out the data and see the measurements as a graph, showing the profile over time. This can be exported to a spreadsheet for further study or manipulation. Data loggers are used in environmental monitoring applications for soil monitoring, air monitoring, water, noise and other areas that impact on human society. Temperature data loggers and humidity data loggers collect information from industrial process emissions that keep tight control on how we affect the precious environment around us. Data loggers have become smaller, less expensive, more accurate and more reliable than chart recorders. They score highly for ease of use, reliability, accuracy and value. When it comes to selecting your supplier you need to consider their experience, in-house manufacturing, a large customer base, and knowledgeable, helpful sales and support people.
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