Meters, Testing & Dosing

GroLine Professional Portable Soil pH Meter

GroLine Professional Portable Soil pH Meter

Regular price $772.00 USD

Regular price Sale price $772.00 USD
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GroLine Monitor for Hydroponic Nutrients with Inline Probe

GroLine Monitor for Hydroponic Nutrients with Inline Probe

Regular price $585.00 USD

Regular price Sale price $585.00 USD
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HANNA Direct Soil Measurement pH Portable Meter

HANNA Direct Soil Measurement pH Portable Meter

Regular price $528.00 USD

Regular price Sale price $528.00 USD
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Bluelab Guardian Monitor Inline Connect

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Bluelab Guardian Monitor Inline Connect

Regular price $519.95 USD

Regular price Sale price $519.95 USD
Unit price per

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GroLine Waterproof Portable Hydroponics pH/EC/TDS/Temp Meter Kit

GroLine Waterproof Portable Hydroponics pH/EC/TDS/Temp Meter Kit

Regular price $491.00 USD

Regular price Sale price $491.00 USD
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GroLine Nutrient Dosing System

GroLine Nutrient Dosing System

Regular price From $474.00 USD

Regular price Sale price From $474.00 USD
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GroLine pH Dosing System

GroLine pH Dosing System

Regular price From $469.95 USD

Regular price Sale price From $469.95 USD
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GroLine Monitor for Hydroponic Nutrients

GroLine Monitor for Hydroponic Nutrients

Regular price $459.95 USD

Regular price Sale price $459.95 USD
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Bluelab Guardian Monitor Connect

Bluelab Guardian Monitor Connect

Regular price $404.95 USD

Regular price Sale price $404.95 USD
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Bluelab Guardian Monitor

Bluelab Guardian Monitor

Regular price $362.95 USD

Regular price Sale price $362.95 USD
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Bluelab Combo Meter Plus

Bluelab Combo Meter Plus

Regular price $329.45 USD

Regular price Sale price $329.45 USD
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GroLine Waterproof Portable pH/EC/TDS Meter

GroLine Waterproof Portable pH/EC/TDS Meter

Regular price $324.95 USD

Regular price Sale price $324.95 USD
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HANNA HALO Wireless Soil pH Meter

HANNA HALO Wireless Soil pH Meter

Regular price $283.00 USD

Regular price Sale price $283.00 USD
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Bluelab Pulse Multimedia EC/MC Meter

Bluelab Pulse Multimedia EC/MC Meter

Regular price $279.95 USD

Regular price Sale price $279.95 USD
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Bluelab Combo Meter

Bluelab Combo Meter

Regular price $278.45 USD

Regular price Sale price $278.45 USD
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GroLine Hydroponic Waterproof Pocket pH/EC/TDS/Temperature Tester

GroLine Hydroponic Waterproof Pocket pH/EC/TDS/Temperature Tester

Regular price $259.95 USD

Regular price Sale price $259.95 USD
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GroLine Direct Soil and Soilless pH Electrode

GroLine Direct Soil and Soilless pH Electrode

Regular price $250.00 USD

Regular price Sale price $250.00 USD
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HANNA Portable High Range EC/TDS Meter

HANNA Portable High Range EC/TDS Meter

Regular price $240.00 USD

Regular price Sale price $240.00 USD
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GroStar GS2 Soil pH Pen

GroStar GS2 Soil pH Pen

Regular price $211.95 USD

Regular price Sale price $211.95 USD
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HANNA Low Range pH/Conductivity/TDS Tester

HANNA Low Range pH/Conductivity/TDS Tester

Regular price $195.00 USD

Regular price Sale price $195.00 USD
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GroLine pH/EC/TDS Multiparameter Probes

GroLine pH/EC/TDS Multiparameter Probes

Regular price From $180.00 USD

Regular price Sale price From $180.00 USD
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HANNA Portable Lux Meter

HANNA Portable Lux Meter

Regular price $179.00 USD

Regular price Sale price $179.00 USD
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GroLine HALO2 Wireless pH Tester for Soil

GroLine HALO2 Wireless pH Tester for Soil

Regular price $175.00 USD

Regular price Sale price $175.00 USD
Unit price per
$Milwaukee Instruments MA871 Digital Brix Refractometer, Range 0-85%$

Milwaukee Digital Brix Refractometer Range - 0 to 85

Milwaukee Digital Brix Refractometer Range - 0 to 85

Regular price $170.95 USD

Regular price Sale price $170.95 USD
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GroLine Soil pH Tester

GroLine Soil pH Tester

Regular price $150.00 USD

Regular price Sale price $150.00 USD
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GroLine Soil Test Direct Soil Conductivity Tester

GroLine Soil Test Direct Soil Conductivity Tester

Regular price $149.95 USD

Regular price Sale price $149.95 USD
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HM Digital 4 in 1 PH/EC/TDS/TEMP Combo Meter

HM Digital 4 in 1 PH/EC/TDS/TEMP Combo Meter

Regular price $148.65 USD

Regular price Sale price $148.65 USD
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GroStar GS4 pH/EC/500ppm/700ppm & Temp (5-in-1) Combo Pen

GroStar GS4 pH/EC/500ppm/700ppm & Temp (5-in-1) Combo Pen

Regular price $147.95 USD

Regular price Sale price $147.95 USD
Unit price per
Bluelab Connect Stick 2

Bluelab Connect Stick 2

Regular price $146.15 USD

Regular price Sale price $146.15 USD
Unit price per
Bluelab Truncheon Nutrient Meter

Bluelab Truncheon Nutrient Meter

Regular price $125.95 USD

Regular price Sale price $125.95 USD
Unit price per
Bluelab Commercial Truncheon Nutrient Meter

Bluelab Commercial Truncheon Nutrient Meter

Regular price $125.95 USD

Regular price Sale price $125.95 USD
Unit price per
GroStar GS1 pH Pen

GroStar GS1 pH Pen

Regular price $99.95 USD

Regular price Sale price $99.95 USD
Unit price per
GroLine Nutrient Tester

GroLine Nutrient Tester

Regular price $99.95 USD

Regular price Sale price $99.95 USD
Unit price per
GroLine Waterproof EC/TDS (ppm) Pocket Tester

GroLine Waterproof EC/TDS (ppm) Pocket Tester

Regular price $99.95 USD

Regular price Sale price $99.95 USD
Unit price per
GroLine Waterproof Pocket pH/Temperature Tester

GroLine Waterproof Pocket pH/Temperature Tester

Regular price $99.95 USD

Regular price Sale price $99.95 USD
Unit price per
Bluelab 2.77 EC Conductivity Standard Solution

Bluelab 2.77 EC Conductivity Standard Solution

Regular price $99.15 USD

Regular price Sale price $99.15 USD
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GroStar GS3 EC/PPM/Temp Pen

GroStar GS3 EC/PPM/Temp Pen

Regular price $94.95 USD

Regular price Sale price $94.95 USD
Unit price per
Milwaukee Instruments EC40 PRO EC/TDS Nutrient Meter

Milwaukee Instruments EC40 PRO EC/TDS Nutrient Meter

Regular price $83.95 USD

Regular price Sale price $83.95 USD
Unit price per
Bluelab Conductivity Pen

Bluelab Conductivity Pen

Regular price $83.85 USD

Regular price Sale price $83.85 USD
Unit price per
HM Digital Waterproof pH Meter PH-200

HM Digital Waterproof pH Meter PH-200

Regular price $81.05 USD

Regular price Sale price $81.05 USD
Unit price per
GroLine Hydroponics pH Tester

GroLine Hydroponics pH Tester

Regular price $70.00 USD

Regular price Sale price $70.00 USD
Unit price per
HM Digital Dual TDS Monitor DM-3

HM Digital Dual TDS Monitor DM-3

Regular price $56.95 USD

Regular price Sale price $56.95 USD
Unit price per
GroLine Storage Solution Sachets, 20 mL (box of 25)

GroLine Storage Solution Sachets, 20 mL (box of 25)

Regular price $46.00 USD

Regular price Sale price $46.00 USD
Unit price per
GroStar Replacement Electrodes

GroStar Replacement Electrodes

Regular price From $41.91 USD

Regular price Sale price From $41.91 USD
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HM Digital pH Meter PH-80

HM Digital pH Meter PH-80

Regular price $35.10 USD

Regular price Sale price $35.10 USD
Unit price per
GroLine General Purpose Cleaning Solution

GroLine General Purpose Cleaning Solution

Regular price From $20.00 USD

Regular price Sale price From $20.00 USD
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GroLine Electrodes Storage Solution

GroLine Electrodes Storage Solution

Regular price From $20.00 USD

Regular price Sale price From $20.00 USD
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GroLine pH Calibration Buffer

GroLine pH Calibration Buffer

Regular price From $20.00 USD

Regular price Sale price From $20.00 USD
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GroLine Quick Calibration Solution for pH and EC Meters

GroLine Quick Calibration Solution for pH and EC Meters

Regular price From $20.00 USD

Regular price Sale price From $20.00 USD
Unit price per
HM Digital Handheld TDS Tester TDS-3

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HM Digital Handheld TDS Tester TDS-3

Regular price $15.80 USD

Regular price Sale price $15.80 USD
Unit price per

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GroLine Conductivity Standard Solution

GroLine Conductivity Standard Solution

Regular price From $13.00 USD

Regular price Sale price From $13.00 USD
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Apera GroStar EC Calibration Kit

Apera GroStar EC Calibration Kit

Regular price $12.95 USD

Regular price Sale price $12.95 USD
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Active Air 3-Way Meter

Active Air 3-Way Meter

Regular price $8.45 USD

Regular price Sale price $8.45 USD
Unit price per
Active Air 2-Way Moisture/pH Meter

Active Air 2-Way Moisture/pH Meter

Regular price $7.95 USD

Regular price Sale price $7.95 USD
Unit price per

Collection: Meters, Testing & Dosing

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