Aanderaa Recording Current Meter 8 (RCM-8) is a self-contained insturment that can be moored into the sea and record ocean current, water temperature, conductivity of the water and instrument depth. RCM-8 consists of a recording unit and vane assembly which is equipped with a rod that can be shackled into the mooring line. This arrangement permits the instrument to swing freely and align with the current. The recording unit contains all sensors, the measuring system, battery and a detachable, reusable solid state data storage unit. The RCM-8 is a high pressure model, and can go as deep as 6000 meters.