"Teledyne RDI Workhorse Mariner 300kHz ADCP"@en . . "SDN:L22::TOOL0749" . "The workhorse mariner WM-300 provides short-range current profiling (typical range 110m, or 154m in long-range mode). This model operates at a 300kHz frequency providing precision bottom-track reference for direct vessel speed measurement."@en . .