Bluelab® Conductivity Pen (EC or PPM) pH Since potassium makes up part

Since potassium makes up part of the fluid of the plant

Bigger roots and longer root hairs for optimal nutrient uptake

with organic OR conventional feeding programs

Useful as a growing media flush to clean and remove unwanted mineral build-up

phosphorous

Bluelab® Conductivity Pen (EC or PPM) pH Since potassium makes up partBluelab PENCON Conductivity Pen and Digital TDS Meter, Water Tester for Temperature and Nutrient (CF, EC, PPM 500, PPM 700), TDS Testing Kit for Hydroponic System and Indoor Plant Grow Measuring conductivity and temperature, the Bluelab Conductivity Pen keeps track of two fundamental aspects that determine your plants' ability to thrive. With the Bluelab Conductivity Pen (EC or ppm) you'll never have to guess your nutrient concentration again. This is