REED Instruments R5003 Dual Input True RMS AC Voltage/Current Datalogger Datalog up to 256,000 AC voltage and current measurements Dual input measures 2 voltage/current measurement or 1 of each LCD simultaneously displays time/date, current readings and Max/Min readings User adjustable sample rate from 1 sec to 24 hrs and High/Low Alarms Includes 2 current clamp sensors, 2 voltage sensors, 4 alligator clips, 4 probes, USB cable, software, AC adapter and batteries