12 Channel Digital Thermometer with Datalogger12 Channel Digital Thermometer with Datalogger features a large, bright screen and connections for six thermocouple types (J, K, E, T, R, S). Users can simultaneously display channels 1 8 or 9 12 and store 99 readings manually, or up to 20 million readings with date and time stamp using a 2GB SD card. All data is saved in MS Excel format for further analysis. The user programmable sampling rate is adjustable from 1 to 3600 seconds with Min Max, Data