PPM, EC, TDS & Combo Meters

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EC/TDS Hydro tester ( Com-80 ) - Hanna (HM Digital)

EC/TDS Hydro tester ( Com-80 ) - Hanna (HM...

$59.93
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Quick Easy to use Economical 30 days warranty
Nutri+ TDS Quickcheck Tester

Nutri+ TDS Quickcheck Tester

$33.93
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Bluelab PPM Pen The ultimate handy solution for measuring conductivity (EC or ppm) and temperatur...

Bluelab PPM Pen

$109.93
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Nutradip Growboss NEW and Improved Features Include: PPM Probe is now manufactured and assemble...
NutraDip GrowBoss

NutraDip GrowBoss

$339.93
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Alfred Digital EC / TDS / Temperature Hydro Tester The TDS-1 is an economically priced, reliable ...
Alfred Digital EC / TDS / Temperature Hydro Tester - Dutchman's Hydroponics & Garden Supply

Alfred Digital EC / TDS / Temperature Hydr...

$49.93
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Conductivity, pH and temperature meter all in one portable option• Push button pH calibration; PP...

Bluelab Combo Meter, pH,EC,Temp

$374.93
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Bluelab Truncheon Nutrient Meter The World’s favorite conductivity meter. Simply brilliant, brill...

Bluelab Truncheon Nutrient Meter

$159.93