PH and PPM pens

Question

Hi there, a bit confused which PH and PPM pens are good. There's a range of prices out there from a few quid to hundread of pounds. Can anyone give me an Amazon link with the best choice please? Thanks in advance, Rik

Mr. Grow It · Accepted Answer

Here are the ones I use: https://amzn.to/3otOYTi https://amzn.to/3oxyTfg

rikmazda · Answer

Thanks Mr. Grow it, especially for the PPM pen!

mwhite9829 · Answer

Aspera has he best bang for your buck on ph pens and they work pretty good.https://www.amazon.com/Apera-Instruments-AI311-Replaceable-2-00-16-00/dp/B01ENFOIQE/ref=mp_s_a_1_12?dchild=1&keywords=ph+pen+tester+for+water&qid=1607342727&sprefix=ph+pen&sr=8-12 As for ppm I use the blue labs tester but for some reason I can't find it on Amazon. Some of these things lately I've found lower cost at local hydro stores then amazon, if you have any I'd check there as well.

rikmazda · Answer

Thank you so much mwhite9829,much obliged for that!