The Bluelab pH Pen is designed for convenience and comfort for water monitoring and analysis. Compact, tough and reliable; the Bluelab pH pen is built to last. Advanced technology and accurate measurements ensures that your crop is grown within exactly the right parameters for healthy growth!

The Bluelab pH Pen allows for compact and quick monitoring of your water pH and temperature, allowing you to provide the best conditions for your crops! pH is a measurement of the acidity or alkalinity of an aqueous solution. The new Bluelab pH Pens also include satchels of KCl solution, pH 4 & 7 for calibration.

Features: 

• Measures pH and temperature 

• Selectable units for temperature 

• Backlit LCD display 

• Double junction probe (not replaceable) 

• Successful pH calibration indicator 

• Hold reading function 

• Low battery indicator 

• Fully waterproof 

• Auto off function 

• Automatic temperature compensation 


Ensuring your pH is correct allows for your crop to uptake nutrients efficiently. Without monitoring your pH and EC levels, you're essentially growing blind. pH and EC measurement are basic tools on the belt of a hydroponic farmer.

Handy, convenient and accurate for home or commercial growers! 

Bluelab is a New Zealand based manufacturer that is globally recognised. They have been engineering and building water measuring technology for over 30 years! 

Learn more at the Bluelab website here!