Bluelab Grower's Toolbox Promote Converts with a switch from

Converts with a switch from sodium to halide

Veg or Bloom

so strain before applying

Recovery: Up tp 98% of Ethanol

This spare sensor is for HM Digital EC/TDS/Temp Combo Meter model COM-100

Bluelab Grower's Toolbox Promote Converts with a switch fromThe Bluelab Growers Toolbox combines the essential tools you need to easily manage your crop by measuring the pH, conductivity (ppm) and temperature of the nutrient solution. Learn the hydroponics basics with the Grow Book, so you can get going. And keep growing with the ultimate handy team, the Bluelab pH Pen and Bluelab ppm Pen. These clever little pens make it easy to measure the nutrient uptake (pH), the amount of food available (ppm) and the