Soondar&reg; PC USB Powered Thermometer Temperature Sensor Data Log It is a temperature measuring devices via USB connection to computer. It can accurately measure the temperature of the surrounding environment. Supports data recording, dynamic curves analyzing and alarming It can transmit temperature data to files, like excel with Num-lock/caps lock or TXT press button Supports Email and remote viewing of MSN/Skype. Support System: Windows NT/XP/VISTA/7/8. Do not Support Linux. The probe wire length: 35inches. If you have any issues when you receive your product, please don't hesitate to contact us.