HM Digital Waterproof Professional Series pH/EC/TDS/Temp Meter post harvest yet it’s so easy to

yet it’s so easy to use that even novice gardeners can achieve growing success

PhytoMAX-4 is built to offer the greatest yield per watt while amplifying pigments and maximizing production

Keep your pH in the “sweet spot” for thriving crops with Advanced Nutrients’ pH Perfect® Base Nutrients

- Power Supply

Perfect for tanks as small as 15 gallons

HM Digital Waterproof Professional Series pH/EC/TDS/Temp Meter post harvest yet it’s so easy toDescription COM 300L: Waterproof Professional Series pH EC TDS Temp Meter The COM 300L 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 and scientific testing, pools and spas, ecology testing, boilers and cooling towers, water treatment and more. Features Measures Potential Hydrogen (pH), Electrical