A data logger is an electronic device that is used to record measurements over time. Pico data loggers require no power supply and simply plug into a parallel, serial or USB port on your PC. By connecting suitable sensors, Pico data loggers can be used to measure temperature, pressure, relative humidity, light, resistance, current, power, speed, vibration... in fact, anything that you need to measure. Pico data loggers are supplied complete with PicoLog — this powerful but flexible data acquisition software allows you to collect, analyze and display data. With PicoLog the data is viewable both during and after data collection, in both spreadsheet and graphical format. You can also export the data for use in other applications.