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Optimize nutrient strength during growth, flowering, and fruiting Same reliable waterproof dustproof housing as pHTestr.
Choose from models for TDS?or conductivity (ECTestr); 1%?accuracy.
Replacement sensors and solutions
OK-35661-17 for TDSTestr Low, High, ECTestr High
OK-35653-13 15 mS?calibration solution for High Testrs
Item Number: 131990
Manufacturer's Part Number: WD-35661-31