Extech EA10 EasyView Type K Dual Input Thermometer with Dual readings features: Internal memory stores up to 8800 data sets; Seven Thermocouple type selections: K, J, T, E, R, S, and N; Compact and rugged design features large backlit display; Built-in datalogger to store 8800 measurements; Each record stores Time, T1 and T2; Manual push-button datalogging or automatic with programmable sample rate of 3 to 355 seconds per reading;