Plants get their food from minerals - but they can only uptake those minerals if they are made bio-available by feeding at the correct Ph. Think of nutrients like a lock, and pH is the key. A key factor that affects nutrient uptake is whether your solution is acidic or alkaline, and we measure this in pH.
The Bluelab pH Pen also measures the temperature of the solution, as root health is vital to the success of a crop. Temperature affects the growth rate and structure of a plant so a solution temperature of 18 - 22˚C or 65 - 72˚F is recommended.
This hand held pH pen provides a compact, quick and convenient way to manage the success of your crop and ensure the maximum uptake of nutrients.
Teamed with our Bluelab PPM or EC Pen or Truncheon Meter, and you have a convenient and accurate system for ensuring optimum plant growth and health.
- Keep your Probe clean and accurate by filling the cap with Storage Solution.
- Keep your Probe clean with the Bluelab Probe Care Kit.
Bluelab Ph Pens all come with sample sachets of storage solution, Ph4 and Ph7 calibration solutions.
Go with the Industry Standard - Go with Bluelab!
Using Bluelab products is always a good experience as their products are amongst the top tiers for quality & reliability. The ph pen works wonders & it's a must as my tap water comes out at 7.8 to 8.1 which my plants will use but won't flourish to their near fullest potential.
Bluelab PH Pen
Really accurate, easy calibration and easy to use. Don't waste your time n money on cheaper pens, go Bluelab.
Do it right the first time and get this machine.
After trying a few of the cheaper options and having a very hard time calibrating them, I decided to invest in the Bluelab pH Pen, and boy was I glad I did. Calibrating was incredibly easy, gives fast and accurate readings and is over all a great unit. If you serious about wanting to get your pH right every time this is a must tool. I was able to get everything needed to maintain and clean this machine at indoor farmer and they even sent me extra cleaning packets as a thank you. Great product and great site