Store the pH sensor (SP-P5) with the protective cap filled with pH storage solution to maintain electrode hydration

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and invertebrates

Removes chlorine

HM Digital COM-360 Professional pH/EC/TDS/Temp Meter – 4-in-1 Water Quality Tester dual EC monitor Store the pH sensor (SP-P5)HM Digital COM 360 Professional 4 in 1 pH EC TDS Temp Meter The HM Digital COM 360 is a professional grade, multi parameter water quality meter that measures pH, Electrical Conductivity (EC), Total Dissolved Solids (TDS), and Temperature all in one rugged, water resistant handheld device. Trusted by hydroponics growers, aquaculture professionals, lab technicians, pool operators, and water treatment specialists worldwide. Key Benefits 4 in 1