pH Meters & Test Kits

National Hydro Group is your online source for pH Meters & Test Kits. If you cant find the pH Meters & Test Kits that meet your needs please give us a ring or send a quick email so we can help you find exactly what you're looking for.
General Hydroponics pH Control Kit-NWGSupply.com
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$17.50
$14.19

General Hydroponics pH Control Kit

General Hydroponics

The pH Control Kit includes one liquid pH test kit and 8 oz of each Up (base) and Down (acid). The pH Test Kit is a liquid tester that covers a pH ...

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$17.50
$14.19
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Bluelab pH meter with probe-NWGSupply.com
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$210.00
$172.79

Bluelab pH meter with probe

BlueLab

The Bluelab pH Meter is used to accurately measure the pH value of a solution. Simply place the Bluelab pH probe into the solution and the reading ...

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$210.00
$172.79
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Milwaukee pH Meter pH600 AQ-NWGSupply.com
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$33.95
$27.93

Milwaukee pH Meter pH600 AQ

Milwaukee Instruments

Milwaukee's most affordable pH tester, range: 0.0 to 14.0 pH, with one point manual calibration, and accuracy of ᄆ0.2 pH. Battery Life: 700 hours. ...

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$33.95
$27.93
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Martini pH55 Waterproof pH and Temperature Tester-NWGSupply.com
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$81.00
$69.84

Martini pH55 Waterproof pH and Temperature Tester

Milwaukee Instruments

At less than eight inches tall and one-and-a-half inches wide, Milwaukee Instruments’ Martini pH55 Waterproof pH & Temperature Tester is an acc...

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$81.00
$69.84
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Bluelab pH Meter-NWGSupply.com
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$210.00
$159.48

Bluelab pH Meter

BlueLab

The Bluelab pH Meter is a simple, reliable pH meter that provides accurate readings and unparalleled ease-of-use. Growers can use this AAA battery-...

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$210.00
$159.48
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General Hydroponics pH Test Indicator, 8 oz-NWGSupply.com
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$11.00
$8.88

General Hydroponics pH Test Indicator, 8 oz

General Hydroponics

This concentrated pH test indicator is simple to use and offers results that are easy to read. Three drops of pH Test Indicator for every five mill...

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$11.00
$8.88
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General Hydroponics pH Control Kit-NWGSupply.com
Save 18%
$17.20
$14.19

General Hydroponics pH Control Kit

General Hydroponics

General Hydroponics pH Control Kit contains 8 oz pH UP, 8 oz pH DOWN, 1 oz indicator and vial.

$17.20
$14.19
Save 18%
Save 4%
$7.54
$7.23

GH pH Test Kit, 1 oz

General Hydroponics

General Hydroponics pH test kit. Contains pH test fluid and test strips.

$7.54
$7.23
Save 4%
Hydroponics Water Test Kit-NWGSupply.com
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$18.00
$16.63

Hydroponics Water Test Kit

Water Safe

The Watersafe Hydroponics Water Test Kit gives growers an inexpensive, easy and reliable way to evaluate water quality and determine the need for w...

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$18.00
$16.63
Save 8%
SureTest pH Test Strip Kit 5.5 - 8.0-NWGSupply.com
Save 14%
$10.99
$9.44

SureTest pH Test Strip Kit 5.5 - 8.0

Sure Test

The SureTest Kit includes everything you need to test the pH of your water or nutrient solution. Includes 15 ft of pH dependent color changing pape...

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$10.99
$9.44
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Waterproof EcoTestr pH2-NWGSupply.com
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$90.50
$69.13

Waterproof EcoTestr pH2

Oakton

Oakton’s Waterproof EcoTestr pH2 is a convenient pH meter that doesn’t let dirt or moisture keep it from delivering accurate readings. It features ...

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$90.50
$69.13
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pH Tester With 1 Point Manual Calibration-NWGSupply.com
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$32.99
$30.48

pH Tester With 1 Point Manual Calibration

Milwaukee Instruments

Milwaukee's economical tester is an easy-to-use, low cost instruments to measure quick and reliable pH, EC or TDS values. Measuring electrical con...

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$32.99
$30.48
Save 8%
Milwaukee PH Hand Meter Accuracy 0.1-NWGSupply.com
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$119.99
$97.19

Milwaukee PH Hand Meter Accuracy 0.1

Milwaukee Instruments

This smart pH meter is a low cost portable meter with a very fast and accurate processor. Unit comes with detachable probe, 9v battery and calibrat...

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$119.99
$97.19
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Digital pH Meter-NWGSupply.com
$16.19

Digital pH Meter

Luster Leaf

The slender redesigned meter style provides an easier to read, instant digtal read-out. It measures and displays the acidity / alkalinity of garden...

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$16.19
PH/Temperature Meter-NWGSupply.com
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$62.95
$52.92

PH/Temperature Meter

HM Digital

pH/temperature meter.

$62.95
$52.92
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Bluelab pH Pen-NWGSupply.com
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$112.50
$91.13

Bluelab pH Pen

BlueLab

The ultimate handy solution for measuring pH! Plants get their nutrition from minerals but they can only get all the right minerals they need if ce...

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$112.50
$91.13
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Essentials pH Test Kit-NWGSupply.com
Save 42%
$9.89
$5.73

Essentials pH Test Kit

Active Aqua

(Wide Spectrum) Measures 3-10 pH. The Hydroponic Essentials pH test kit is good for 150 tests. At the rate of 3 tests per week it will last one yea...

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$9.89
$5.73
Save 42%
Digital PH Controller-NWGSupply.com
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$369.95
$285.23

Digital PH Controller

Autopilot

The Autopilot pH-1 controller accurately and reliably measures and controls the pH of any water-based solution, including hydroponic nutrient mixtu...

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$369.95
$285.23
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2-Way pH & Moisture Meter-NWGSupply.com
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$9.89
$6.37

2-Way pH & Moisture Meter

Active Air

Gardeners can conveniently test moisture and pH levels with the handy Active Air 2-Way Meter. Moisture readings register on a scale of 0 (dry) to 1...

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$9.89
$6.37
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Aqua Culture Kit-NWGSupply.com
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$94.99
$79.62

Aqua Culture Kit

GreenGro

The Aqua Culture Kit from GreenGro includes everything you will need to keep your inner garden lush and bountiful. GreenGro only provides the highe...

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$94.99
$79.62
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pH Test Indicator 8 oz-NWGSupply.com
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$12.89
$9.69

pH Test Indicator 8 oz

General Hydroponics

Fill a test-tube halfway with nutrient, add a few drops of pH Test Indicator, and observe the coloration of the liquid in the test vial. Use 3 drop...

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$12.89
$9.69
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pH Test Kit, 1 oz-NWGSupply.com
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$10.89
$7.23

pH Test Kit, 1 oz

General Hydroponics

pH test kit Contains pH test fluid and test strips

$10.89
$7.23
Save 34%
pH Control Kit-NWGSupply.com
Save 10%
$17.20
$15.48

pH Control Kit

General Hydroponics

Contains Ph Up (add a little at a time when your nutrient pH is too low in order to raise the pH to the proper level), Ph Down (uses food grade Pho...

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$17.20
$15.48
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Waterproof pH Tester-NWGSupply.com
Save 16%
$140.00
$117.50

Waterproof pH Tester

Hanna

The Waterproof pH Tester has a durable casing to repel water and ensure long life; the dual level display shows both pH and temperature, and has a ...

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$140.00
$117.50
Save 16%