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TDS/EC and pH Meters & Monitors

TDS/EC and pH Meters & Monitors

Full selection of meters from Groline by Hanna Instruments.

Precise measurements for the professional and serious hobby hydroponic grower.

We also carry the Horiba pH and SAP ion meters including calcium ion, potassium ion, nitrate ion.

Control Wizard Accurate pH 8 soil pH/moisture meter

Control Wizard Accurate pH 8 soil pH/moisture meter

The Accurate pH 8 is a professional pH and Moisture Meter with 12” Probe. Now You can check soil pH at multiple depths!! The probe is 12”...
$75.00  $50.25
Save: 33% off
Hanna Direct Soil pH Meter, HI99121N

Hanna Direct Soil pH Meter, HI99121N

With this direct soil pre-amplified pH and temperature probe, you can test both the pH of soil directly or after preparation of a diluted...
$455.00  $377.65
Save: 17% off
Soil Test™ Direct Soil EC Tester - HI98331

Soil Test™ Direct Soil EC Tester - HI98331

Soil Test™ Direct Soil EC Tester - HI98331 The Soil Test™ Direct Soil EC Tester - HI98331 is a rugged and reliable pocket-sized tester...
$119.00
Soil Test™ Hanna 1413 uS/cm Calibration Solution, 230 ml

Soil Test™ Hanna 1413 uS/cm Calibration Solution, 230 ml

Hanna 1413 μS/cm Solution, 230 ml   HI7031-023 is a GroLine 1,413 µS/cm conductivity standard that is prepared against a NIST...
$16.99
HI 993310 Direct Soil Activity and Solution Conductivity Meter

HI 993310 Direct Soil Activity and Solution Conductivity Meter

  HI 993310 Direct Soil Activity and Solution Conductivity Measurement Kit       Supplied with two probes Automatic...
$770.95
Waterproof pH/EC/TDS/Temperature Portable Meter - HI9814

Waterproof pH/EC/TDS/Temperature Portable Meter - HI9814

GroLine Hydroponic Waterproof pH/EC/TDS/Temperature Portable Meter - HI9814 The HI9814 is a slim, lightweight, and waterproof portable meter that...
$259.00
Horiba LAQUAtwin B-713 Compact pH Meter

Horiba LAQUAtwin B-713 Compact pH Meter

Accurate pH measurements in a few seconds, from a single drop.* Water pH varies in different environments, and a slight change can often have a major...
$264.00
Horiba LAQUAtwin B-731 potassium ion meter

Horiba LAQUAtwin B-731 potassium ion meter

Horiba LAQUAtwin B-731 potassium ion meter Potassium Ion Only compact meter for a quick and reliable measurement of potassium ion at the scene...
$365.00
Horiba LaquaTwin B-741, Nitrate meter for crops

Horiba LaquaTwin B-741, Nitrate meter for crops

Horiba LaquaTwin B-741, Nitrate meter for crops $594.00 100-9,900 ppm measurement range for plant sap analysis The compact LAQUAtwin B-74X series...
$594.00
Horiba LaquaTwin B-751 Calcium Ion meter

Horiba LaquaTwin B-751 Calcium Ion meter

Horiba LaquaTwin B-751 Calcium Ion meter For analaysis of nutrient solutions and plant sap. The compact LAQUAtwin B-751 is the only meter for quick...
$400.00
pH calibration solution, general hydroponics

pH calibration solution, general hydroponics

general Hydroponics brand pH 4 and pH 7 calibration solution. 8 ounces of each
$14.00

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Maxibloom 1 kg (2.2lbs)
Maxibloom 1 kg (2.2lbs)
$16.24  $13.80
Save: 15% off
Maxigro 1 kg (2.2lbs)
Maxigro 1 kg (2.2lbs)
$16.24  $13.80
Save: 15% off

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