DIY conductivity probe for salinity measurments

[mkzimms]

anyone have plans or a reference for building a DIY conductivity probe? i'd like to use it to calculate salinity.

 

[WindowMaker]

Id love to see this one too!

 

[WindowMaker]

found one!

http://www.practicalmaker.com/ec/diy-ec-probe

 

[djmx2002]

Hi, It seems like that Endraw from practical maker stopped working on that EC cuircuit because it wasn't stable and he wasn't able to get it to work.

I could prototype and test it but i don't have a conductivity probe...

 

[WindowMaker]

Ive seen several concepts for ec/ppm boards. This is on my list for somewhere down the road, but far from the top of the list. I've found a good source for ec probes so I will grab one or two of those eventually.

 

[djmx2002]

What is your source for Ed probes? I was thinking about ordering the marine pinpoint probe from eBay for about 60 or to get the Ed kit from as

 

[KRavEN]

Hi, It seems like that Endraw from practical maker stopped working on that EC cuircuit because it wasn't stable and he wasn't able to get it to work.

I could prototype and test it but i don't have a conductivity probe...

Where did you find that info? I didn't see anything on his page and he's selling the EC pcb there. Would be interested to know because I'm getting ready to start an I2C temp/ph/orp/ec board based on some of his circuits.