pH/EC/TDS Meters & Solutions

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24-7 Nutrient Monitor
A great all around meter for nutrient applications needing constant monitoring. It measures PPM, ..
$208.95
Accurate pH 7 Soil pH & Moisture Meter
The Accurate pH 7™ utilizes the electronic ground field effect of the earth on two dissimilar met..
$64.95
Accurate pH 8 Soil pH & Moisture Meter
The Accurate pH 8 is a professional pH and Moisture Meter with 12” Probe. This meter can measure ..
$74.95
Bluelab 27.1CF Calibration Solution 250ml
The CF27.7 (EC2.77) solution is used as a reference or checking solution to ensure you have adequ..
$8.00
Bluelab 27.7CF Calibration Solution 500ml
The CF27.7 (EC2.77) solution is used as a reference or checking solution to ensure you have adequ..
$11.00
Bluelab Combo Meter
  Light weight and portable Measures pH, Nutrient and Temperature Three ..
$308.00
Bluelab Commercial Truncheon Meter
With a conductivity range right up to 6.0EC (60CF or 4200ppm), it will never leave you short. The..
$140.00
Bluelab Guardian Monitor
  In just one glance it measures all three critical parameters for successful growth pH,..
$364.00
Bluelab Nutrient Probe Cleaning Kit
CF/EC cleaning kit: Full color laminated instructions Conductivity standard solutio..
$21.50
Bluelab Original Truncheon Meter
  With its super tough, high quality, fully waterproof design, no calibration required, ..
$140.00
Bluelab pH 4.0 Calibration Solution 250ml
pH measuring equipment must be cleaned and calibrated regularly to ensure they are giving the use..
$8.00
Bluelab pH 4.0 Calibration Solution 500ml
pH measuring equipment must be cleaned and calibrated regularly to ensure they are giving the use..
$11.00
Bluelab pH 7.0 Calibration Solution 250ml
pH measuring equipment must be cleaned and calibrated regularly to ensure they are giving the use..
$8.00
Bluelab pH 7.0 Calibration Solution 500ml
pH measuring equipment must be cleaned and calibrated regularly to ensure they are giving the use..
$11.00
Bluelab pH Meter
The Bluelab pH Meter is used to accurately measure the pH value of a solution. Simply place the p..
$210.00
Bluelab pH Pen
  Measures pH and temperature. Selectable units for ˚C & ˚F. Backlit..
$112.50
Bluelab pH Probe Clean Calibration Kit
pH cleaning and calibration kit: Full color laminated instructions Calibration solu..
$30.00
Bluelab PPM Pen
Measures conductivity and temperature. Selectable units for conductivity and temperature. ..
$94.00
Bluelab Soil pH Meter
  If you need to measure the pH level of soil, media or substrates, then the Bluelab® So..
$257.00
Bond 3 Way Soil Meter
Measures moisture content of soil. Lets you know to water. Helps you determine if plant is gettin..
$9.95
Control Wizard 1382 Calibration Solution 4oz
Control Wizard Products 1382 Conductivity Standard. Use to calibrate all meters that use the 1 EC..
$4.95
E.C Dipstick
Now with the 4 most popular scales: EC, CF, 500:1 ppm, and 700:1 ppm! The E.C. Dipstick™ dissolve..
$84.95
Earth Juice Natural Down 1.6lb
An enlightened concept in pH control, a crystallized pH adjuster for the professional & hobby..
$16.14
Earth Juice Natural Up 2lb
An enlightened concept in pH control, a crystallized pH adjuster for the professional & hobby..
$18.15
EC Shake Nutrient Meter
This revolutionary EC meter is powered by a magnet instead of a battery! A gentle shaking action ..
$87.95
Future Harvest Nutradip pH Replacement Probe
Nutradip pH Probes are the reliable way to measure acidity in your nutrient solution. The pH Prob..
$64.95
Future Harvest Tri-Meter Continuous Monitor # 202 (PPM/pH/Temp)
  This meter gives you the ability to monitor pH level, Nutrient Levels in PPM and Nutri..
$232.95
Future Harvest Tri-Meter Continuous Monitor # 204 (EC/TDS/Temp)
  This meter gives you the ability to monitor pH level, Nutrient Levels in EC and Nutrie..
$232.95
Future Harvest Tri-Meter Replacement Probe - 3ft Cable
Replacement probe for the Tri-Meters or the pH Meters. 6 month limited warranty. ..
$66.95
General Hydroponics pH Control Kit
Contains: 8 oz. pH UP, 8 oz. pH DOWN, 1 oz. indicator & vial ..
$17.20
General Hydroponics pH Test Kit 1 oz.
General Hydroponics pH Test Kits make pH testing easy. Simply fill a test-tube halfway with nutri..
$7.54
GH 1500 PPM Reference Solution 8oz
General Hydroponics™ uses the highest quality reference solutions, allowing growers to calibrate ..
$8.20
GH pH 4.01 Calibration Solution 8oz
General Hydroponics™ uses the highest quality reference solutions, allowing growers to calibrate ..
$7.54
GH pH 4.01 Calibration Solution Quart
General Hydroponics™ uses the highest quality reference solutions, allowing growers to calibrate ..
$21.50
GH pH 7.01 Calibration Solution 8oz
General Hydroponics™ uses the highest quality reference solutions, allowing growers to calibrate ..
$7.54
GH pH 7.01 Calibration Solution Quart
General Hydroponics™ uses the highest quality reference solutions, allowing growers to calibrate ..
$21.50
GH pH Down Dry 2.2lb
This powdered acid formula is easy to handle and ship. Lightweight in comparison to liquids. Wide..
$10.76
GH pH Down Liquid Gallon
The Acid formulation uses food grade Phosphoric acid to lower the pH to the proper level. ..
$26.90
GH pH Down Liquid Quart
The Acid formulation uses food grade Phosphoric acid to lower the pH to the proper level. ..
$10.76
GH pH Up Dry 2.2lb
This powder based formula is made to raise the pH in a reservoir. Lightweight in comparison to li..
$14.40
GH pH Up Liquid Gallon
This Base solution is formulated using Potassium Hydroxide and Potassium Carbonate. Add a little ..
$26.90
GH pH Up Liquid Quart
This Base solution is formulated using Potassium Hydroxide and Potassium Carbonate. Add a little ..
$10.76
Green Air Electrode Cleaner Part A & B - 8 oz Twin Pack
Used to clean meter tip. Works for both pH and conductivity meters. Comes as a two part A and B c..
$20.00
Green Air Electrode Storage Solution 16oz
  Use to store your pH meter electrode between use. This solution is designed to keep yo..
$12.50
Green Air Electrode Storage Solution 8oz
Use to store your pH meter electrode between use. This solution is designed to keep your electrod..
$7.95
Green Air pH Calibration Kit 4.01 & 7.01 - 16oz Twin Pack
These solutions are used to calibrate pH meters to assure they are accurate and working properly...
$28.00
Green Air pH Calibration Kit 4.01 & 7.01 - 8oz Twin Pack
These solutions are used to calibrate pH meters to assure they are accurate and working properly...
$15.95
Green Air pH Calibration Tri-Pack 4.01, 7.01 & ESS 8oz
User friendly Tri-Pack contain everything you need to properly calibrate or maintain your meters...
$21.95
Grow More pH Down 30% - Gallon
Convenient ready to use liquids, concentrated, fast acting, high purity food grade ingredients. U..
$31.95
Grow More pH Down 30% - Quart
Convenient ready to use liquids, concentrated, fast acting, high purity food grade ingredients. U..
$11.95