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Very-High-Conductivity Soils
Up to 25 m cable length
The CS645 is used in TDR100-based systems. This probe consists of a Sanoprene head, three pointed rods, and a low-loss LMR200DB cable. The length of each rod is 7.5 centimeters, allowing the probe to be used in very high electrical conductivity soils or in laboratory column applications (maximum soil bulk electrical conductivity of 5 deciSiemens/meter). The low-loss cable is suitable for lengths up to 25 meters as measured from the tips of the probe's rods to the TDR100 reflectometer. A similar probe, the CS640, is available for applications using shorter cable lengths (up to 15 meters). The CS640 and CS645 differ only in their cables.

The "-L" on a product model indicates that the cable length is specified at the time of order.