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The WRL keeps track of two different minimum and maximum values and up to 8000 lines of data (depending on memory size) in its non-volatile memory clock. The WRL-10 has 2K of memory and will retain approximately 30 lines of data. The WRL-32 has 32K of memory and will retain approxomately 2000 lines of data. The WRL-128 has 128K of memory and retains about 8000 lines of data. All functions of the WRL can be controlled through its RS232 interface. Included with the standard WRL system is a wind di