PalmSens, is a USB and battery powered Potentiostat and Galvanostat which can be used for electrochemical studies. The PalmSens has a large potential range (± 2 V) and current range (100 nA to 1 mA) with a high resolution and low noise. The economical PalmSens is a complete laboratpry instrument but its compact and rugged design makes it also ideal for filed work.