Teamed with our Bluelab ppm or EC Pen, you have a handy, convenient and accurate system for ensuring optimum plant growth and health. Take control of your hydroponic system and maximise your growing success with this powerful combination from Bluelab.

The Bluelab pH Pen is a great little hand-held device for measuring the acidity/alkalinity of your nutrient solution. Whether you’re monitoring the pH of your reservoir, nutrient tank, or runoff, the Bluelab pH Pen delivers reliable and accurate results. Our products are designed and built for grower environments - not the lab - so you can relax knowing that your pen can withstand the knocks, drops and deep-water plunges that come with everyday growing. When growing, it’s easy to get caught up in the obvious big things: nutrient feeders/bottles, tent and extraction.The Bluelab Soil pH Pen provides a pH and temperature reading of soils and media, so you know that the right nutrients will be made available to your plants. Temperature affects the growth rate and structure of a plant so a solution temperature of 18 – 22˚C or 65 – 72˚F is recommended. The temperature of your growing solution is equally important as having a solution that’s too hot or too cold can affect growth rate and structure.

We offer pH buffer solutions, as well as pH probe storage solutions, allowing you to maintain your pH probe easily. These state-of-the-art pH pens feature advanced electrode technology, providing fast and reliable readings with exceptional accuracy.EC meters measure the conductivity of the nutrient solution, which is directly related to the nutrient levels in the water. The accuracy of any pH reader can be negatively effected if the temperature of the solution is too high or too low. A calibration confirmation will be displayed at the bottom of the pen or meter screen to indicate a successful calibration.