AC Infinity pH/TDS Meter PRO Kit, Interchangeable Probe

It’s great recommend 10 times

Good meter at a good price!

A little confusing at first, decided not to calibrate it as the instructions were calling for a solution I couldn't seem to find. (10.0 ph solution) I winged it on my first go.. easy to read and use. Other brands with better rep, but as a noob wanted to stay with one brand for there warrenty if nothing else.