The pH Pen with screw adjustment provides precise measurement of pH levels in nutrient solutions and liquids. Its screw mechanism allows for simple, manual calibration to maintain accuracy over time. Compact and portable design suits use in hydroponics, aquariums, or soil testing. Features a clear LCD display for quick readings and automatic temperature compensation for reliable results regardless of environmental conditions. Available in blue, red, yellow, or black to match user preferences. Ensures optimal pH balance for effective additive and nutrient management.
Ph pen -screw adjust – Blue/Red/Yellow/Black
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