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Bluelab

Bluelab pH Up, 1 gal Bottle, case of 4

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Bluelab

Optimum growth needs optimum pH. And Bluelab makes optimum simple. If your pH isn't in the right range—and that's 5.5-6.5 for most plant varieties—your nutrients are...

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FoxFarm

FoxFarm Gringo Rasta® pH Up Liquid, 1 qt

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FoxFarm

It’s time to get on UP! GRINGO RASTA® pH UP uses the power of potassium hydroxide to raise the pH of your nutrient solutions in both soil and hydroponic environments.

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$66.95
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FoxFarm

FoxFarm Gringo Rasta® pH Down Liquid, 1 qt

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FoxFarm

It’s time to get down! GRINGO RASTA® pH DOWN uses citric acid to lower the pH of your nutrient solution in both soil and hydroponic environments

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Bluelab

Bluelab pH Probe KCl Storage Solution, 250 ml

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Bluelab

The perfect solution to store and hydrate your Bluelab pH products.Bluelab knows it is extremely important to care for and store pH probes correctly. pH probes are sen...

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Bluelab

Bluelab pH & Conductivity Probe Care Kit

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Bluelab

The instrument is only as accurate as the probe is clean. Probe cleaning is one of the most important parts of owning or operating any Bluelab meter, monitor or contro...

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Bluelab

Bluelab Combo Meter Plus

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Bluelab

Help Your Plants Grow - Fast, reliable and versatile: Combo Meter Plus means you will be able to measure more and build a better understanding of your complete growing...

$349.00

Bluelab Combo Meter Plus

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Bluelab

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Bluelab

Bluelab pH Probe KCl Storage Solution, 100 ml

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Bluelab

The perfect solution to store and hydrate your Bluelab pH products. Bluelab knows it is extremely important to care for and store pH probes correctly. pH probes are se...

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Active Air

Active Air 3 - Way Meter

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Active Air

Gardeners can conveniently test their moisture, light, and pH levels with the handy Active Air 3-Way Meter. Moisture readings register on a scale of 0 (dry) to 10 (moi...

$11.99

Active Air 3 - Way Meter

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Active Air

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Technaflora

Technaflora pH Up, 1 L, case of 12

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Technaflora

Technaflora's pH Up and pH Down enable the gardener to moderate and maintain optimum pH levels. The pH scale is a measure that describes the relative acidity or alkali...

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Oakton

Oakton pHTestr 30 w/0.01 pH Accuracy, Temperature Display & ATC (Automatic Temperature Compensation)

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Oakton

Optimize nutrient strength during growth, flowering, and fruiting by knowing exactly what is going on with your plants. Use the Oakton pH tester with accurate ATC to g...

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Oakton

Oakton Replaceable Electrode for pH WP 2 Pen

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Oakton

This part number is for a replacement electrode only, for your Oakton pH WP 2 pen (not the actual unit itself).Optimize nutrient strength during growth, flowering, and...

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Oakton

Oakton Waterproof EcoTestr pH1

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Oakton

OAKTON's new EcoTestr is economical and easy to use. With its crystal clear, ergonomically designed display, you can easily view measurements at a glance. Each rugged ...

$79.99

Oakton Waterproof EcoTestr pH1

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Oakton

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Oakton

Oakton 1413 microsiemens/cm Conductivity Standard Solution, 500 ml

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Oakton

Standards have KCl, NaCl and 442 conversions printed on the bottle for ease of use. Temperature corrections are printed on the bottle, with the certified values listed...

Nutradip GrowBoss Nutrient Monitoring System

The Nutradip GrowBoss is a nutrient monitoring system that assists growers in achieving maximum results for their growing efforts. The GrowBoss is a constant monitorin...

Microbe Life Hydroponics pH DOWN, 16 oz

Microbe Life Hydroponics pH DOWN is formulated with R/O and UV sterilized water and combines two pH adjusters for buffered effectiveness. It contains three electrolyte...

Microbe Life Hydroponics pH UP, 2.5 gal

Microbe Life Hydroponics pH UP is formulated with R/O and UV sterilized water and combines two pH adjusters for buffered effectiveness. It contains three electrolytes ...

Milwaukee Instruments T75 WP TDS/ppm Tester

Stainless steel probes deliver fast and accurate readings with ten times better resolution. Comes with protective case and calibration solution. Measures in part per...

Milwaukee Instruments Dissolved Oxygen Meter

Entry level, inexpensive Dissolved Oxygen Portable Meter for fast and reliable results. The MISM600 is a compact, portable dissolved oxygen meter with faster microproc...

Milwaukee Instruments pH 600 pH Tester w/1 Point Manual Calibration

pH Tester with 1 point manual calibration, ± 0.2 pH accuracy, range: 0.0 pH to 14.0 pH. Full-range pH tester. 30-day warranty, snap-over protective case, 7.01 calibrat...

Milwaukee Instruments pH 600 pH Tester With 1 Point Manual Calibration

pH Tester with 1 point manual calibration, ± 0.2 pH accuracy, range: 0.0 pH to 14.0 ph. Full-range pH tester. 30-day warranty, snap-over protective case, 7.01 calibrat...

Milwaukee Instruments pH WP Waterproof pH Tester

• Range -2.0 to 16.0 pH • Resolution 0.1 pH • Accuracy ± 0.1 pH • ATC automatic • Calibration 2 points - automatic• User select 6 buffer types • Environment 32-122°F (...

Milwaukee Instruments MC720 Dosing Pump Kit

The MC720 Kit - Comes with the MC122 pH controller and MP810 dosing pump The small and precise flow of the MP810 provides fully automated pH control of aqueous soluti...

Milwaukee Instruments MC122 pH Controller w/Hi-Low Activation & User Set Point

Professional pH controller especially designed for use with aquariums. Features user selectable Hi/Low Set Point, manual 2-point calibration, visual LED alarm. Include...

Milwaukee Instruments pH Monitor w/Hi-Low Alarm LED & User Set Point

Professional pH monitor especially designed for use with aquariums The Milwaukee MC120 pH Monitor is designed to continuously monitor pH, EC or TDS values directly in ...

Milwaukee Instruments 1382 ppm Calibration Solution, 230 ml

Available in 230 ml bottles and 20 ml sachets. Traditional buffer solutions are packed in 230 ml leak-proof bottles and are recommended for lab application. Sachets ar...

Milwaukee Instruments pH 7.01 Solution, 230 ml

Available in 230 ml bottles and 20 ml sachets. Traditional buffer solutions are packed in 220 ml leak-proof bottles and are recommended for lab application. Sachets ar...

Milwaukee Instruments pH 4.01 Calibration Solution, 230 ml

Available in 230 ml bottles and 20 ml sachets. Traditional buffer solutions are packed in 230 ml leak-proof bottles and are recommended for lab application. Sachets ar...

Milwaukee Instruments MA871 Digital Brix Refractometer, Range 0-85%

Digital Sugar Refractometer for general purpose with automatic temperature compensation (ATC).Range 0-85% Brix, resolution 0.1%, units come with battery.

Milwaukee SPO pH/IDC/Temp/Data logging Controller with Wi-fi

Milwaukee pH & Temperature Monitor with Wifi Easy to set up, these devices accurately control water variables with programmable hysteresis, automatic temp compensa...

pH/ORP/Temp/Data logging Controller with Wi-fi

Milwaukee pH & Temperature Monitor, Wifi Easy to set up, these devices accurately control water variables with programmable hysteresis, automatic temp compensation...

Milwaukee pH, Temp & IDC Controller

Milwaukee pH & Temperature Monitor, Wifi Easy to set up, these devices accurately control water variables with programmable hysteresis, automatic temp compensation...

Milwaukee pH & Temperature Monitor, Wifi

Milwaukee pH & Temperature Monitor, Wifi Easy to set up, these devices accurately control water variables with programmable hysteresis, automatic temp compensation...

Milwaukee Instruments C66 Waterproof EC/mS Tester

The C66 is a microprocessor based Waterproof Conductivity Tester with a rugged one-piece IP67 waterproof casing. Immersible up to the LCD! This instrument is a low cos...

Milwaukee Instruments EC65 Waterproof Tester

The C65 is a microprocessor-based conductivity tester with a rugged one-piece IP67 waterproof casing. Immersible up to the LCD. This instrument is a low-cost and easy ...

Milwaukee Instruments pH/EC/TDS Kit

Milwaukee Instruments AG900 provides instant readings of the three most important factors in efficient plant production: pH, EC, or TDS. The AG900 kit comes with an ...

Milwaukee Instruments Mi 805 Commercial Grade Combo pH/EC/TDS/Temp Meter

Multi-range pH/EC/TDS and Temperature meter - 4-in-1 pH/EC/TDS/Temperature probe - The rugged MA851D/1 probe has been designed for heavy-duty applications (agriculture...

Milwaukee Instruments 1500 ppm Calibration Solution, 20 ml Sachets, case of 25

This item is sachets Available in 220 ml bottles and 20 ml sachets. Traditional buffer solutions are packed in 220 ml leak-proof bottles and are recommended for lab ap...

Milwaukee Instruments 1382 TDS Calibration Solution, 20 ml Sachets, case of 25

Available in 220 ml bottles and 20ml sachets. Traditional buffer solutions are packed in 220 ml leak-proof bottles and are recommended for lab application. Sachets are...

Milwaukee Instruments pH 7 Calibration Solution, 20 ml Sachets, case of 25

This item is sachets Available in 220 ml bottles and 20 ml sachets. Traditional buffer solutions are packed in 220 ml leak-proof bottles and are recommended for lab ap...

Milwaukee Instruments pH 4 Calibration Solution, 20 ml Sachets, case of 25

This item is sachets only Available in 220 ml bottles and 20 ml sachets. Traditional buffer solutions are packed in 220 ml leak-proof bottles and are recommended for l...

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Luster Leaf

Luster Leaf Rapitest Electronic 4-Way Analyzer

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Luster Leaf

Determines soil pH, soil fertility, soil moisture, and the amount of sunlight per day.

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Luster Leaf

Luster Leaf Digital Soil pH Meter

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Luster Leaf

Digital results from 3.5 to 9.0. Instructions and plant pH preference list included.

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Luster Leaf

Luster Leaf Rapitest Digital 3-Way Analyzer

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Luster Leaf

Digital device for determining soil pH, soil temperature and soil fertility.    

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Luster Leaf

Luster Leaf Digital Moisture Meter

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Luster Leaf

Digital results from 0 to 9.9. Printed instructions and extensive plant list.