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Grown Up Hydroponics

BlueLab - pH Pen/Meter

BlueLab - pH Pen/Meter

Regular price £79.99 GBP
Regular price Sale price £79.99 GBP
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The Bluelab pH Pen provides a compact, quick, handy and affordable way to manage the success of your plants and ensure maximum uptake of nutrients.

Specially developed as an affordable and effective option for hobby gardeners.


Measures pH and temperature

Selectable units for centigrade and Fahrenheit

Backlit LCD display

Double junction probe (not replaceable)

Successful pH calibration indicator

Hold function

Low battery warning

Fully waterproof

Auto off function

Automatic temperature compensation

A compact and robust user-friendly handheld pen which takes measurements in increments of 0.1 pH and is fully temperature compensated to ensure accurate readings every time. Fully waterproof rather than merely water-resistant, the  Bluelab pH Pen is designed to float if dropped into a reservoir. Temperature display in °C or °F selectable.

Hold function keeps the pH reading on screen for as long as required. Easy to calibrate, and calibration check mark reminds the user when recalibration is due. Powered by 1 x AAA alkaline battery (included, 350 hrs life), with power-saving auto shut-down after 4 minutes unused.  

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