I can not find a digital tester anywhere. All I can find is analog at lowes. Did you all have to order yours, local greenhouse maybe?
Amazun.com , type 'ph tester' it's the yellow cheap one...also get the '7.0ph calibration solution' to calibrate it correctly (the tester comes with a screw driver to calibrate it on the back, the solution is perfect 7.0ph which is the only real way to calibrate it so it's somewhat accurate). All together $30, expensive, but you need both. Hope that helped, and sorry if you already know all this, I like to go into shit when I'm high.
Not at all brotha! Appreciate that! I want it to be as accurate as possible. That's why I didn't waste the money on the analog. And I am just burning it down too man lol
I got the yellow one from eBay for $12 (including shipping). Then just get the pH 7.0 from a hydro or grow shop.