*Blue Lab PH Pen
The Bluelab pH Pen is a hand-held device for measuring the acidity/alkalinity of your nutrient solution. Bluelab products are trusted by growers across the globe for their accuracy and reliability. With temperature compensation, it provides highly accurate readings, as well as displaying the temperature of your nutrient solution onscreen.
Bluelab – a proven track record for accuracy and reliability Temperature compensated for improved accuracy Backlit LCD display Manufactured from quality materials Easy push-button calibration Water-resistant case Auto shut off to conserve battery life
Hints and Tips : Temperature affects the growth rate and structure of a plant, so a solution temperature of eighteen to twenty one degrees celsius is recommended.