YSI Pro30 [60530-30] Cable Assembly (Cond) with Temperature / Conductivity Sensor, 30m. The YSI 30 conductivity cable can be ordered in lengths of 1-, 4-, 10-, 20-, and 30-meters. Cables do come with the sensor built directly into the cable so there is no need to order a conductivity sensor. Cables over 1-meter also come with the 603062 cable management kit.