I just bought those cheap type from ebay. They are a 3 in 1 meter: light, moisture and PH. I also picked up some litmus paper strips. If I see anything irregular I have a quick check. But the nutes I use are 100% organic and cannot burn the plants at all. Bat guano, worm castings, seaweed and tomato concentrate, seaweed soil conditioner and a rich mix of soil with perlite.

I don't really have to worry about burning at all, I don't even have to flush before harvest.

You can check out my grow journal in the link. I documented it every week and I mentioned everything I used on the plants.

Maybe you might never need a meter again LED Logger
silent leprechaun Reviewed by silent leprechaun on . pH meters? I have spent way too much money on pH meters. Digital meters were my first experience. I started off with a digital meter from Hanna. I then bought a constant monitor system from Hanna for my hydro set-up. It was then that I realized that neither meter matched up...at all. So began an experiment to find the most accurate meter around. I bought several meters: a couple of Hanna digital meters, some off brand dip stick digitals, a trungeon meter, and a milwalkie meter. even in Rating: 5