I'm pretty sure that if you get a data logger like this (http://www.microdaq.com/lascar/temperature/usb-thermocouple-logger.php http://www.microdaq.com/lascar/t

I'm pretty sure that if you get a data logger like this (http://www.microdaq.com/lascar/temperature/usb-thermocouple-logger.php http://www.microdaq.com/lascar/temperature/usb-thermocouple-...) and combine it with a good thermocouple probe and you should be good to go.