YSI Pro2030 [6052030-20] Cable Assembly (DO/Cond) with Temperature/Conductivity Sensor, 20m. The YSI 2030 is a combo DO/Conductivity cable for use with the Professional Plus instrument. Measure dissolved oxygen, conductivity, salinity, specific conductance, total dissolved solids and temperature. Cables do NOT come with the DO sensor so the 605202 Galvanic or 605203 Polarographic DO sensor must also be ordered. The conductivity sensor is built into the cable. Cables over 1-meter also come with the 603062 cable management kit.