EC Meters
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Basic TDS / PPM / EC Digital Water Meter
GrowGuru4.65 / 5.0
17 Reviews
The Basic TDS/PPM/EC Digital Water Meter is a must-have tool for measuring your water's total dissolved solids (TDS), parts per million (PPM), and ...
View full detailsEC Calibration Solution - 1413 mS
GrowGuru4.75 / 5.0
4 Reviews
The EC Calibration Solution is a must-have for hydroponic gardeners that want precise measurements of their nutrient solution. If you want precise ...
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