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Ships within 48 hours · Estimated delivery Sep 10 - Sep 15
high-efficiency design
Stainless steel pressure vessel
High-grade chlorobutyl diaphragm
Calypso Blue Premium Cartridges are made from FDA approved materials and are NSF 61 certified
COM-300: Waterproof Professional Series pH/EC/TDS/Temp Meter Choose::Single high-efficiency designThe COM 300 is a professional grade level pH 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 Potential Hydrogen (pH), Electrical Conductivity (EC), Total Dissolved Solids (TDS), Salinity and Temperature Five scales: pH,
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