EmStat is the smallest potentiostat available in the market. It has eight current ranges from 1 nA to 100 mA (EmStat3+) full scale, with a minimum resolution of 1 pA.The potentiostat is controlled and powered by USB. It provides the most relevant electroanalytical measurement techniques and is used with the PSTrace software.The instrument is delivered with a cable with 2 mm bananaconnector, with mini crocodile clips for the working, reference and counter electrodes. The supplied testsensor is used to test the performance of the instrument. EmStat can be extended with a multiplexer with 8 or 16 channels. The EmStat and multiplexer boards are available as OEM potentiostat for other companies for instance for use in an QCM or SPR instrument.