PH meter, digital ph meter, pen type ph meter, PH controller, PH monitor, TDS meter, EC meter, CF meter, ORP controller PH meter, digital ph meter, pen type ph meter, PH controller ... to 60 °CDimensions: 180mm Dia.35mmPH/ORP INDUSTRIAL ON-LINE CONTROLLER PHC200 pH meter 0-14pH ± 0.01pH PHC201 pH controller 0 ...