Data Logger

A data logger is an instrument used to monitor and record changes in conditions over time. They can be single, stand-alone units or composed of multiple channels. Most stand-alone units are battery-powered, allowing them to record while in transit and for extended periods of time. Data loggers consist of a microprocessor, an internal memory for data storage, and a sensor to collect data. The advantage of data loggers is that they can operate independently of a computer, unlike many other types of data acquisition devices. They are generally small and battery powered devices. Data loggers can monitor temperature, humidity, carbon dioxide, pH, pressure, voltage, current, and pulse – making them useful for a number of applications.