Spider Farmer 5-in-1 TDS/PH Hydroponic Meter Kit with a high-sensitivity sensor

TDS Value (Water Purity). 5-in-1 Hydroponic Tester x 1. Soil, hydroponic, aeroponic or aquaponic systems. Range: 0.01-14 pH. Resolution: 0.01 pH. Accuracy: ±0.05 pH. Range: 0-9999 μS/cm, 10-200 mS/cm.

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