HM Digital - COM-300 pH/TDS/Temperature Water Testing Meter

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DESCRIPTION

The HM Digital COM-300 is one of the professional grade level pH/EC/TDS/Temp meters perfect for all water quality testing, water purification applications, water treatment, wastewater regulation, aquaculture, colloidal silver, labs & scientific testing, hydroponics, pools & spas,  boilers & cooling towers, ecology testing and more.