Dissolved Oxygen Meter With Simple Instructions

A low-cost, reliable dissolved oxygen meter—made for hydroponic growers who need accuracy without frustration. Most meters come with impossible-to-follow instructions. Ours doesn’t. Every unit includes super simple, step-by-step instructions from GreenEase, so you’ll be up and running in minutes—no headaches, no guesswork. We tested oxygen meters that cost much, much more and this is the winner. Get precise readings without pulling your hair out!