Bluelab pH Pen - Temperature Compensated Digital pH Tester Bulky Diameter options: 4"

Diameter options: 4"

Regulator (nutrient uptake and stress support)

helping to nourish them

Flush products are a fairly standardised category

Growers wanting to optimise photosynthesis without gas bottles and safety concerns

Bluelab pH Pen - Temperature Compensated Digital pH Tester Bulky Diameter options: 4"Bluelab pH Pen Temperature Compensated Digital pH Tester Complete Feeding, No Guesswork Our thoughts Straightforward nutrients that work consistently without complications. Simple, reliable feeding that delivers results. The Bluelab pH Pen is a great little 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 the handy new pH Pen is