Tekpower TP8236 True RMS USB Digital Multimeter AC/DC Voltage Current Capacitance Frequency Resistance Temperature USB Date Logger True RMS AC/DC Voltage Current Capacitance Frequency Resistance Temperature measuring Diode check and continuity test,relative test,Max/Min hold Automatic and manual range, True RMS, Temperature show in Both C and F, selectable Backlight, Datahold, Auto Power Data Logger with USB Connection