U.S. Geological Survey Open-File Report 2007-1194
Figure 6B. A Vector Averaging Current Meter (VACM) with Sea Tech transmissometer mounted horizontally in a protective bracket. A conductivity sensor is mounted on the pressure case between the transmissometer and the rotors. These enhanced VACMs were deployed on subsurface moorings to obtain current, temperature, conductivity, and light-transmission measurements in the water column.