Bluelab® Conductivity Pen (EC or PPM) pH Organic pest control spray for

Organic pest control spray for plants

and minerals that plants need for optimal health

Mycorrhizae form a type of symbiotic relationship between fungi and plant roots

today's DOS makes every part of your grow even easier

with organic OR conventional feeding programs

Bluelab® Conductivity Pen (EC or PPM) pH Organic pest control spray forBluelab 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