... dewpoint automately 4.CE USB thermometerThermometer & hygrometer is a measurement device using USB port to connect to a computer or other ... indication: Red light when working6, Recharging method: PC or USB port adapter7, Support Windows ,XP, VIST;8, Memory requirement ... : 20M9 , Data auto save to be txt or excel;10, Send mails function11, Graph transfer function usb thermometer