Low-cost National Instruments USB data acquisition (DAQ) devices provide basic functionality for applications such as simple data logging, portable measurements, and academic lab experiments. They are affordable enough for student use yet powerful enough for more sophisticated measurement applications.
All low-cost USB DAQ devices include free graphing and data-logging software, so you can begin taking measurements in minutes. NI USB-6008 and USB-6009 multifunction DAQ devices feature drivers for Windows, Mac, and Linux OSs as well as Pocket PC.
For faster sampling, more accurate measurements, and a higher channel count, consider the bus-powered and high-performance NI M Series multifunction DAQ devices for USB. Board-only versions are available for OEM applications.