Bluelab Ph Pen Meter

A hardy, compact pH and temperature pen.

Measures pH in solution for acid or alkaline conditions to make precise up and down adjustments with lab-quality glass probe used for the pool, drinking water, hydroponics, brewing, and growing

  • EASY two point calibration and auto temperature compensation makes this digital meter a handy tool with backlit LCD display and calibration reminders

  • Complete your monitor and controller system with other testers and meters from Bluelab, more accurate than test strips and another testing method

  • Other features: auto off function, low battery indicator, units for temperature; KIT INCLUDES: AAA battery, lanyard, and calibration solution

  • Made in New Zealand and manufactured by Bluelab, the industry leader in hydroponic testing equipment; 1 Year Limited Warranty with proof of purchase


Why measure pH and temperature?

Get the fundamentals of growing right, every time.

Healthy growing plants, just like humans, need a balanced diet of appropriate nutrients (food). However, plants can only access these nutrients when the nutrient solution is within a certain pH range.

From a water chemistry perspective, pH (potential Hydrogen) plays a pivotal role in making the nutrients in your solution soluble so that they can be accessed by your plants. That’s why if your growing solution becomes too acidic or too alkaline, the plants won’t be able to get access to the nutrients they need to grow. 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.

To help your plants thrive, get the fundamentals right by measuring pH and temperature to ensure that these are always in the optimal range.


Product Specifications

Accuracy (at 25 C / 77 F) +- 0.1 pH
Measurement Range 0.0 - 14.0 pH
Operating Temperature 0 - 50 C, 32 - 122 F
Power Source 1 x AAA alkaline battery
Units pH, F and C
Calibration Manual calibration, 2 or 3 points
Temperature Compensation Automatic
Resolution 0.1 pH
Type Of Ph Meter Portable
Usage/Application Agriculture



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