


84Upgrade your meters for a steal! Rock solid, dependable, and accurate. Works just like new! I've owned many dif. cheaper pen brands, and would never go back. They all suck, go bad, and are inconsistent with their readings. Not knowing your exact PH and EC when feeding can cause all sorts of issues, and even ruin your entire grow. (I know from experience) Every since upgrading to these, I have had zero problems with my nutrient feedings, and have had predictable results each run. I have to downsize for a big out of state move and will not be taking my Indoor hydroponic grow tent setup with me. Looking for a loving home for all my grow gear. I will be posting some more indoor grow gear I have. If interested reach out and I can share what else I have available, while I get the rest of the items listed.