Bluelab Digital pH & Temperature Pen

Plants get their nutrient from minerals but they can only get all the right minerals they need if certain conditions are right. Think of nutrients like a lock. pH is the key. A key factor that affects food uptake is whether your solution is acid or alkaline. 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.

The hand held pH pen provides a compact quick and handy way to manage the success of your crop to ensure maximum uptake of nutrients. Teamed with our Bluelab ppm or EC Pen, you have a handy, convenient and accurate system for ensuring optimum plant growth and health.

Cheap pH Pens? Yes the Bluelab is not the cheapest on the market. But we've all tried and been disappointed with the cheap pH pens. Usually we're happy with low outlay of money, and using them for the first month or two goes well. But then we start doubting the reading, or failing to get a proper calibration, and then after a few days of guessing why the plants are responding to the water strangely, the damage is done! Then we've found ourselves heading out to look for a new pH meter...

The pH pen provides a digital readout of pH in a solution so you know that the nutrients will be made available to your plants.

• Measures pH and temperature of nutrient solution
• Selectable units for temperature
• Backlit LCD Display
• Double junction probe
• Automatic pH calibration
• Fully Waterproof
• Range: 0.0 – 14.0 pH, 0-50 degrees Celcius
• 12 months warranty
• Made in New Zealand

• Read the manual
• Use probe storage solution in the cap (some supplied in a sachet)
• Keep the cap on when not in use
• Calibrate regularly depending on your level of use
• Don't continously drown it in the water reservoir
• Don't drop it too many times - it's robust, but still can crack when knocked hard enough!
• Following these tips will help the pH meter last for many years of use

• pH 4 Buffer Solution
• pH 7 Buffer Solution
• Storage Solution