Microprocessor-Based pH Controller, 220 Vac, 0 pH to 14 pH, 4 mA to 20 mA, 0 mA to 20 mA, 0 V to 10 V, 2 SPDT, 5 A Relays, ORP, 1/8 " DIN Panel Mount, PHCN-37 Series, Each
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