It provides a compact, quick and handy way to manage the success of crops, to ensure maximum uptake of nutrients. The Bluelab pH Pen is a handheld pH pen that's easy to use, producing clear, accurate readings on an easy-to-read, backlit LCD screen. The convenience of having a battery included ensures you can use the pH Pen without additional purchases. pH and is fully temperature compensated, so you can rely on getting accurate readings every single time. The pH (potential Hydrogen) of your nutrient solution plays a pivotal role in making these elements available to your plants.

So, you can feel confident that your Bluelab Soil pH Pen will withstand the knocks, drops and deep-water plunges that come with everyday growing. With a backlit LCD display, double junction probe, hold function, low battery warning, and waterproof design, the pH pen offers accurate readings.Plants get their nutrition from minerals but they can only get all the right minerals they need if certain conditions are right. You’ll then maximise nutrient uptake, massively reducing the likelihood of encountering nutrient deficiencies. Its accuracy ensures you have the data you need to optimise nutrient uptake and avoid pH-related issues hindering plant growth. The Soil pH Pen is also designed to be easy to use, with a simple interface that allows growers to quickly and easily assess the pH of their soil. By using a Bluelab digital pH meter to regularly check whether the pH of your nutrient solution or growing medium (or substrate) is in the correct range, you’ll be giving your plants the chance to truly flourish.

The Bluelab's pH Pen a 2-in-1 handheld pH meter is very handy to use and provides a compact, quick and better way to manage the success of crops.

Use the pH pen to quickly and accurately know if your solution is too acidic or alkaline, or too hot or cold. Temperature affects the growth rate and structure of a plant so a solution temperature of 18 – 22˚C or 65 – 72˚F is recommended. It is important to note , if the temperature of the solution is too high or low the accuracy of some pH readers can be negatively affected.

The easy-to-follow calibration process will ensure that your pH measurements remain accurate; if you’re using your pH meter every day, it will need to be calibrated more regularly. Keeping your pH meter calibrated is essential for taking accurate readings and keeping your nutrient solution within the correct pH range. Temperature affects the growth rate and structure of a plant so a solution temperature of 18 – 22°C or 65 – 72°F is recommended.

Follow the instructions to hydrate and calibrate your pen, and submerge the probe in your nutrient reservoir to view the measurement on the display. Always calibrate the pH Pen using the two-point calibration process to ensure accurate measurements. The Bluelab pH Pen is a great little hand-held device for measuring the acidity/alkalinity of your nutrient solution.