Extech DL160 Dual Input True RMS AC Voltage and Current Datalogger logs up to 256,000 readings and is user programmable with sample rates ranging from 1 second to 24 hours. Allows for simultaneous measurements of any two input combinations (two AC Voltage, two Ac Current, or 1 each AC Voltage and AC Current). The Extech DL160 Dual Input True RMS AC Voltage and Current Datalogger has a clear and easy to read LCD screen that displays time/date, current readings and Min/Max.