COM-100 + PH-200 + PH-STOR + C342 PPM COMBO HM Digital PH/TDS/EC Meter aquarium controller Perfect for:

Perfect for:

Total volume: 1

Housing: Water-Resistant

Reverse osmosis (RO) and filtered water verification

and microplastics while infusing healthy minerals for clean

COM-100 + PH-200 + PH-STOR + C342 PPM COMBO HM Digital PH/TDS/EC Meter aquarium controller Perfect for:COM 100 COM 100: Waterproof Professional Series EC TDS Meter The COM 100 is a professional grade level EC TDS Temp meter ideal for all water quality testing, hydroponics, water purification applications, wastewater regulation, aquaculture, colloidal silver, labs & scientific testing, pools & spas, ecology testing, boilers & cooling towers, water treatment and more. FEATURES: Measures electrical conductivity (EC), total dissolved solids (TDS), salinity