Multiple measurement units (ppm

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**Water Bank designed for one-time use

pH Value: @25°C 7

HM Digital HM-200 pH EC TDS Monitor - Portable 5-in-1 Water Quality Tester Santevia ceramic filter Multiple measurement units (ppmProfessional Portable 5 in 1 pH EC TDS Salinity Temperature Monitor The HM Digital HM 200 is a professional grade portable monitor that simultaneously displays pH, Electrical Conductivity (EC), Total Dissolved Solids (TDS), Salinity, and Temperature on a large LCD screen. With replaceable sensors, digital calibration, and automatic temperature compensation, this versatile monitor delivers accurate, reliable measurements for hydroponics, water