HM Digital® Com-80s hydro-logic phosphorous plays a role in

phosphorous plays a role in both root and bloom development

Natural product - safe for human or animal consumption

the pH content of your nutrients should be slightly acidic

The probe surface is where the instrument takes the reading of the solution or soil/media

Made in North America

HM Digital® Com-80s hydro-logic phosphorous plays a role inThe COM 80 is an economically priced, reliable EC TDS meter that is ideal for testing applications such as hydroponics & gardening, pools & spas, aquariums & reef tanks, water ionizers, drinking water and more. Measures electrical conductivity (EC), total dissolved solids (TDS). Excellent for hydroponic nutrient testing.