PH Control

Digital Waterproof TDS Tester

Oakton Digital
Waterproof pH Pen
Pro pH Adjustment Solutions

 
Digital TDS Tester
(by Hydrofarm)

Monitor your nutrient solution the way commercial growers do! This pen eliminates guesswork: you'll know just how much nutrient your plans have used. This pen reads total dissolved solids (TDS) in ppm (parts per million). By monitoring the decrease in ppm, you can maintain the ideal nutrient level for constant productive growth. It's accutate to +/- 2% and includes calibration solution, battery, and instructions.

Price: $91.99

Oakton Digital Waterproof pH Pen
  • It Floats
  • Replaceable Electrode
  • Pushbutton Calibration
  • Auto Shut-Off
  • 0.1 pH Resolution

Price: $99.99 - Best Price Anywhere!!!

Pro pH Adjustment Solutions
(by Hydrofarm)
Don't pollute your resevoir with home remedies! Our pH Adjustment Solutions are made from nutrients plants can use, and they are super concentrated for quick, easy adjustments. Just 1/4 teaspoon per gallon of Adjustment Solution corrects the pH. Please specify either pH Lower (dilute Phosphoric Acid Solution) or pH Raise (dilute Potassium Hydroxide solution) in 16 oz., qt or 1 gal containers.
Item Size Price Order
Pro pH Lower 16 oz $5.95
  Quart $9.95
  Gallon $24.95
Item Size Price Order
Pro pH Raise 16 oz $5.95
  Quart $9.95
  Gallon $24.95


Manual pH Test Kit (by Hydrofarm)
This handy kit is included with our larger garden systems. A simple measurement of nutrient solution will give pH accuracy within +/- .5. It includes a color scale, test vial, and indicator solution.
PH
PH is a measure of how acidic or alkaline your Nutrient solution is. The PH scale goes from 0-14, with 0-7 being acid, 7.0 neutral, and 7-14 alkaline. Most plants prefer the PH to be in the 5.5 to 7.5 range: beyond this, some nutrients become less available for your plants to absorb. Most tap water is in the 7.0 to 8.0 range. Hydroponic nutrients are typically acidic and, when mixed in tap water, usually drop the solution into the proper range. Monitoring PH periodically is a good idea to help ensure optimum nutrients available. Most Hydrofarm units include a basic manual PH test kit; to more precisely manage your garden we recommend our digital pens