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UIUZMAR Digital pH Meter pH TDS EC Meter for Hydroponic Solution pH and EC Meter with LCD Display TDS Water Tester pH PPM Meter for DWC Setup Aeroponic Wocoe Be sure to measure beforeBrand: UIUZMAR Features: [Great Digital pH Tester] A great tool to monitor pH level regularly, as the pH of nutrient solution being such an important factor in hydroponic systems. For the majority of plants, a pH range of 5. 3 6. 5 is considered appropriate for hydroponic. [PPM EC Meter for Hydroponics] Check what the TDS and EC level is in a hydroponic system, and helps you balance water to keep proper water condition. It is vital to have the correct
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