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PPM | TDS | EC Meters

HANNA® GroLine Nutrient EC/TDS (ppm) Tester

$98.00

HANNA GroLine Nutrient EC/TDS Truncheon Tester

HANNA® GroLine Waterproof EC/TDS (ppm) Tester Hanna Instruments

$89.90

HANNA GroLine Waterproof EC/TDS (ppm) Tester

HANNA® GroLine Waterproof Hydroponic pH Tester Hanna Instruments

$89.90

HANNA GroLine Waterproof Hydroponic pH Tester

HANNA® GroLine Hydroponic Waterproof Pocket pH/EC/TDS/Temperature Tester Hanna Instruments

$188.00

HANNA GroLine Waterproof 3 in 1 pH/EC/TDS/Temp Tester

HANNA® GroLine Hydroponic Waterproof pH/EC/TDS/Temperature Portable Meter Hanna Instruments

$288.00

HANNA GroLine Waterproof pH/EC/TDS/Temperature Portable Meter

HANNA® GroLine Nutrient Monitor for pH, EC, TDS, Temperature Hanna Instruments

$389.00

HANNA GroLine Nutrient Monitor for pH, EC, TDS, Temperature

HANNA® GroLine Hydroponic Monitor w/ INLINE PROBE for pH, EC, TDS, Temperature Hanna Instruments

$495.00

HANNA GroLine Hydroponic Monitor for pH, EC, TDS, Temperature

Hanna® GroLine Electrode Cleaning Solution, 20 mL Sachets Hanna Instruments

$2.29

Hanna GroLine Electrode Cleaning Solution, 20 mL Sachets

HANNA® Groline QuickCal Calibration Solution Sachet, 20 mL Hanna Instruments

$2.29

HANNA Groline QuickCal Calibration Solution Sachet, 20 mL

HANNA® Groline QuickCal Calibration Solution, 500 mL Hanna Instruments

$22.50

HANNA Groline QuickCal Calibration Solution, 500 mL

HANNA® GroLine pH 4.01 Calibration Buffer Sachets, 20 mL Hanna Instruments

$2.29

HANNA GroLine pH 4.01 Calibration Buffer Sachets, 20 mL

HANNA® GroLine pH 7.01 Calibration Buffer Sachets, 20 mL Hanna Instruments

$2.29

HANNA GroLine pH 7.01 Calibration Buffer Sachets, 20 mL

HANNA® Groline pH 7.01 Calibration Buffer, 500 mL Hanna Instruments

$22.50

HANNA Groline pH 7.01 Calibration Buffer Solution, 500 mL

HANNA® Electrode Storage Solution, 500 mL Hanna Instruments

From $18.50

HANNA GroLine pH Electrode Storage Solution

Bluelab® pH 4.0 Solution, 20 mL Sachet Bluelab

$1.71

Bluelab pH 4.0 Solution, 20 mL Sachet

General Hydroponics® TDS Calibration Solution, 1500 ppm, qt General Hydroponics

$19.35

General Hydroponics 1500 PPM TDS Calibration Solution

GSG pH Probe KCl Storage Solution, 120 mL GardenSupplyGuys

$10.95

GSG pH Probe KCl Storage Solution, 120 mL

HANNA® 1382 ppm TDS Calibration Solution, 230 mL Hanna Instruments

$15.72

HANNA 1382 ppm TDS Calibration Solution, 230 mL

HM Digital® TDS / EC Calibration Solution, 1000 ppm HM Digital

$6.25

HM Digital TDS / EC Calibration Solution, 1000 ppm

Water Quality TDS Detection Pen

$24.99

Water Quality TDS Detection Pen

HANNA HI83300-01 Multiparameter Benchtop Photometer and pH meter

$1,390.00

HANNA HI83300-01 Multiparameter Benchtop Photometer and pH meter

AC Infinity Hydroponic Meter PRO Kit, All-In-One Ph Pen, Interchangeable Probe

$159.00

AC Infinity Hydroponic Meter PRO Kit, All-In-One Ph Pen, Interchangeable Probe

GroLine 1413 uS/cm Conductivity Standard Sachets, 20 mL

$2.29

GroLine 1413 uS/cm Conductivity Standard Sachets, 20 mL

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GroLine 5000 uS/cm Conductivity Standard Sachets, 20 mL

$2.29

GroLine 5000 uS/cm Conductivity Standard Sachets, 20 mL

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