The Extech PQ3450 is a three-phase power analyzer/data logger that can record up to 30,000 sets of measurements in Excel® format on a removable SD memory card. The robust overmolded housing makes the product comfortable to grip. It has a built-in clock and calendar, 35 settings, and a CAT III 600V safety rating. Comes with a one-year warranty, four voltage leads with alligator clips, eight AA batteries, an SD card, a 100-240 volt AC adaptor, and a case. Clamp probes are available separately.