pH: GH liquid indicator. It's VERY cheap and all you really need if you grow in compost or good soil, and your source water isn't outrageously bad.

EC: ehhh... I once licked the bottom of my pot to see how bad the salt tox I suspected was... does that count? It was pretty bad, in case anyone cares...

Caveat: I grow in compost. In hydro, I run Canna. I don't measure it. I'm not trying to tweak it hard enough to give a crap what the PPM is. Maybe one of these days...

If I cared, I'd go Truncheon all the way. Both of em. Maybe I'll ask my mom for a set for Christmas... you know, for my um... African violets... yeah...

Oh... HANNA SUCKS. They sent my old lab a bunch of pH electrodes a while back as freebies to test. At FREE, they were too expensive. THAT was a waste of time; we shoulda billed 'em for it. Ugh.