Voltcraft k20x digital thermometers voltcraft 306 the voltcraft k202 digital thermometer has a measurement range from 200 to 1370degc and very high accuracy fulfills the highest professional requirements for the long term monitoring of processes the meter has internal storage for 16 000 measurements it has data hold minmax and mean value measurements the lcd shows all channels at one glance or the t1 t2 difference display in either degc or degf it features and auto power off