rikmazda
Dec 07, 2020

PH and PPM pens

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

2 answers2 replies
2
Mr. Grow It
Best Answer
Dec 07, 2020

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

https://amzn.to/3oxyTfg

rikmazda
Dec 08, 2020

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

1
mwhite9829
Dash
Dec 07, 2020Edited: Dec 07, 2020

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
Dec 07, 2020

Thank you so much mwhite9829,


much obliged for that!

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