pH Pen Meter (0.01pH – 14pH)


Digital pH Pen Meter

Looking for a pH pen? These Digital PH Pens are very precise. Also, they display readings almost instantly!
Package includes:

  • 3x calibration powder.
  • 1x casing.
  • 1x manual.
  • Includes free batteries.



pH pen meter:

This pH pen meter uses the latest tech. This is a trusted tech which has a self-calibration system. In other words, this simply adjusts to changes in temp. Also, it offers a full reading range: pH 0-14 with a 0.01 pH resolution. Furthermore, this slick design is portable, user friendly, and it is a must-have for any grower.

What is pH?

pH is a measure of how acidic/basic water is. The range goes from 0 to 14, with 7 being neutral. pHs of less than 7 indicate acidity, whereas a pH of greater than 7 indicates a base. pH is really a measure of the relative amount of free hydrogen and hydroxyl ions in the water. Water that has more free hydrogen ions is acidic, whereas water that has more free hydroxyl ions is basic.

Since pH can be affected by chemicals in the water, pH is an important indicator of water that is changing chemically. pH is reported in “logarithmic units”. Each number represents a 10-fold change in the acidity/basicness of the water. Water with a pH of five is ten times more acidic than water having a pH of six.

Why is a pH pen meter important for plant growth?

Soil is acidic or alkaline and these terms are shown by its pH. The pH scale runs from 0 to 14. Any pH reading below 7 is acidic and any pH above 7 is alkaline. A pH of 7 indicates a neutral soil. The pH is important because it plays a role in the availability of nutrients. At Legal Grow Za we usually grow “acid-loving” plants. Above all, we grow organic only. For this reason, we need to keep the pH range acidic but not too acidic. usually around 6.5 pH. This makes sure that our micro life doesn’t have to do too much work.

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In conclusion, this is a must-have PH pen.
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Delivery and Stock

All of our stock for sale on this website is held in South Africa. Delivery Nationwide. Sign up to our newsletter to receive a promo codes and more!
We do not sell to any other countries other than South Africa.
Please see our delivery terms for more information.


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