I picked one up on Ebay for my new blueberry bushes. I tested the soil and then I test a glass of vinager. The vinager tested 2.4. WikiAnswers say it should be around 2.5. So it works for me. Let's hear what the others say.

What is the best Ph meter you can buy?

Or which kind is the easiest to use? I've tried the little break-the-capsule-in-the-vial kind and it was iffy. My clay soil just colored the water.

I use a $15 Cornell kit instead of a $100 meter I bought from amleonard. It's only good up to 7.2 though so wouldn't do well in more Western locations.

I use the rapitest PH meter; and although not 100% spot on, it is in the ballpark. The cost is around $20.00 ~ $25.00... I would never get the one that also gives a reading for NPK! as one just may as well through there money away with those.