German knick SE 557 Memosens pH sensor
pH sensor - SE 557 for special requirements, high accuracy measurement, with refillable liquid electrolyte. Digital, eliminates typical junction problems, achieves high accuracy measurement in ultrapure water or heavily contaminated media and at high temperatures. Integrated refillable liquid electrolyte container. Ceramic junction; self-cleaning due to pressurization (continuous electrolyte outflow). Silver ion trap prevents junction fouling and contamination.
