Need advice with picking the right ph probe and module - The Planted Tank Forum
 
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post #1 of 8 (permalink) Old 03-05-2017, 02:40 PM Thread Starter
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Need advice with picking the right ph probe and module

Hi,

I plan on adding arduino based ph sensor.

I aim at low budget components so expensive companies like atlas-scientific are not an option.

I would like to hear from your experience so if you could share i would really appreciate it.

Thanks

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post #2 of 8 (permalink) Old 03-06-2017, 01:39 PM Thread Starter
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Anyone? 😟

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post #3 of 8 (permalink) Old 03-06-2017, 02:12 PM
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American Marine, Milwaukee, Marine Depot has a few. There are some cheaper ones of unknown quality on [Ebay Link Removed] I went with Milwaukee because it was a name brand and the price was right. Don't forget the calibration fluid when you order.

Tom
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post #4 of 8 (permalink) Old 05-29-2017, 11:23 PM
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I am currently playing with a set of ph and EC probes/modules from vernier. I got them off evilbay for -$30 each. Not going to find any cheaper. There is code for them on arduino on the arduino sight. Search for vernier.


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post #5 of 8 (permalink) Old 05-30-2017, 10:29 PM
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I am currently playing with a set of ph and EC probes/modules from vernier. I got them off evilbay for -$30 each. Not going to find any cheaper. There is code for them on arduino on the arduino sight. Search for vernier.


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I second the vote for Vernier. They are local to me, and I've met many of their scientists. These guys are so great and really give back to their community. Excellent equipment as well, but keep in mind, they focus on lab type equipment, not hobbyist usage
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post #6 of 8 (permalink) Old 05-30-2017, 10:57 PM
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Need advice with picking the right ph probe and module

@natemcnutty Maybe you can tell me. The one oddness I was seeing is after running for 3-4hrs is seemed to start giving wildly erratic values. Like 30-680 kinda thing. Otherwise it rand just as expect d with

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post #7 of 8 (permalink) Old 05-31-2017, 05:56 AM
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@natemcnutty Maybe you can tell me. The one oddness I was seeing is after running for 3-4hrs is seemed to start giving wildly erratic values. Like 30-680 kinda thing. Otherwise it rand just as expect d with
I'd have to check with our science program managers to see if they have any thoughts. I make sure the Logger Pro software is working with the instruments, but I don't have experience actually using them for extended periods of time.

I work for a school district, and since Vernier is right near our district office, they help us with our science programs by providing lots of lab materials, experience, and real life applications
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post #8 of 8 (permalink) Old 05-31-2017, 09:34 PM
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That is great to hear about the company! Such a great opportunity for the kids. I am using some older din models. I have cut the cords and am reading the output of the modules right into an arduino. I am thinking I may be getting close to cinching up the code for the EC part.

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