For loggers marked with USB symbol and having a circular 4 pin port. Length 1.5m.
For use with some EC-1V, EC-2V, EC-2VA, CT-2VA, EC-3CT, EC-6VA and some older EC-3V. This lead will ONLY work with models that have a USB symbol on the communications port - it will NOT work on models marked with 'Serial Port' or 'RS-232'. For models marked with 'Serial Port' or 'RS-232' you must use a Serial Lead and then a USB to RS232 converter.