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Price as of: 399,00 EUR, SIEMENS 6ES7 331-7TF01-0AB0 SIEMENS SIMATIC DP, HART ANALOG INPUT SM 331, 8 AI, 0/4 - 20 MA HART, FOR ET200M WITH IM153-2, 1 X 20-POLE, FUNCTIONS: FW UPDATE, HART AUXILIARY VARIABLES, REDUNDANCY, LOCAL DIAGNOSTIC BUFFER WITH TIME