PCsensor PC USB Powered Thermometer Temperature Sensor Data Log It is a measurement device using USB port to connect to a computer. It has a outer sensor with water It can measure the temperature of the machine and the environment accurately. It must be connect to Can be used in computer room, weather, environment and special environment temperature testing. Data is displayed in F or C, Measurement data is stored in PC and easily copied into Excel, Ships from Hong Kong, normally arrives within 7-15 business days.