Model 4711-FTZ Power Source

The Model 4711-FTZ Power Source is a quest item from Apothecary Zinge's field testing quest chain. The power source powers the Field Testing Kit, and in better times it was used by the Gadgetzan Water Company to power water wells in the Tanaris desert. It starts the quest Tanaris Field Sampling.

Source
This item is a quest reward from Slake That Thirst and Another Power Source?.