The pH-150MI laboratory meter measures three critical parameters of aqueous media: pH (acidity/alkalinity), ORP (Eh, oxidation-reduction potential), and temperature. Temperature measurement is used for automatic temperature compensation (ATC) of pH readings, ensuring reliable results under varying conditions. This makes the instrument a core solution for water treatment, drinking and wastewater monitoring, and solution analysis in food, medical, and chemical industries, as well as hydroponics, aquaculture, and routine laboratory control.