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Water conductivity monitoring
activity:conductivity

**Conductivity** is a measure of a solution's ability to conduct electricity, as measured in Siemens per meter (S/m). (lead image by @ddileona) This page is under development, please add background info: * Info about regulations * Info about ecological or human health impacts * Advocacy leverage points * Constraints we're working within: cost, complexity, sensitivity, time Also see resources on this page: https://publiclab.org/wiki/conductivity_sensing ## Questions [questions:conductivity] **** ## Sensors Here's a list of different conductivity sensors and measurement systems. Also see below for some Do-It-Yourself approaches to measuring conductivity, and [this page](https://publiclab.org/wiki/conductivity_sensing) for more information. * [the Coqui](/wiki/coqui) **** ## Activities Activities for people to test methods (these develop over time) [activities:conductivity] **** ## Existing work [notes:conductivity] ...


Author Comment Last activity Moderation
MadTinker "Just a quick update on the status of this project. Willow Creek is going through a couple of serious events. First, the stretch of the stream where..." | Read more » over 4 years ago
hpprinter1995 "Nice And Informative Website. Please Keep Continue Such Kind Of Effort. Contact Us And Get On-Site HP Printer Support & HP Scanner Support. Our..." | Read more » over 4 years ago
pdhixenbaugh "I'm also looking to measure Conductivity, and I have a Riffle. So you have any advice for what sensor to buy, with the memory constraints and other..." | Read more » over 4 years ago
Paquicamus "I have done many calibrations to correlate Conductivity vs TDS. One thing that I have found out it will only work for one Creek, river or any surfa..." | Read more » over 4 years ago
eustatic "dot " | Read more » about 5 years ago
bhickman "Hi Patrick. I'm currently out in the field as part of a research team and won't be back to my lab for a few weeks. Once I get back I can look at so..." | Read more » over 5 years ago
pdhixenbaugh "Hi Ben, checking in here -- have you used this design any further? A few folks would be very interested to see what kinds of accuracy and precision..." | Read more » over 5 years ago
kgradow1 "https://publiclab.org/wiki/coqui " | Read more » over 6 years ago
pdhixenbaugh "@kgradow1 I'm having trouble finding the coqui activity grid. Could you link to it? " | Read more » over 6 years ago
kgradow1 "Accidentally posted this on the coqui activity grid and looks like I can't remove it. Help? " | Read more » over 6 years ago
pdhixenbaugh "Ben, thank you for that explanation, it is very helpful in understanding many of the challenges and solutions presented by conductivity field measu..." | Read more » over 6 years ago
bhickman "Hello pdhixenbaugh, I like how you have colored the schematic, makes things much clearer. As for your questions, I'll try and answer them. Firstly..." | Read more » over 6 years ago
pdhixenbaugh "Hi Ben, There is a lot to dive into here. I would really like to learn how this circuit works. I'm also new to this, and have a lot of questions. T..." | Read more » over 6 years ago
donblair "Hi Rebeccah! Fantastic stuff here. Lots to digest, and I have several thoughts -- but first, quickly: the frequency output of the Coqui requires..." | Read more » over 6 years ago
cfastie "Hi Rebeccah, Just in case this can explain the problems when using the proto board, are you aware that the proto board for the Riffle has its pins..." | Read more » over 6 years ago
pdhixenbaugh "Hello Rebeccah! I'm interested in replicating this experiment! The biggest thing I am unsure about is the code - can you link to the riffle code yo..." | Read more » over 6 years ago
warren "Hi, Rebeccah -- looks like your lead image didn't work -- maybe try again, or email it to web@publiclab.org if you can't get it to upload? I'm int..." | Read more » over 6 years ago
rfdave "Thanks. I'm thinking about a Water quality Staff made from PVC with temperature, conductivity, and turbidity sensors build in, so I'm not thinking ..." | Read more » over 6 years ago
bhickman "Hi rfdave. To my knowledge the only requirements is that the electrodes be inert. I chose graphite because I had some laying around and its cheap. ..." | Read more » over 6 years ago
rfdave "I've got a question. Is there any reason you couldn't use metallic electrodes instead of the graphite? Stainless steel would be more rugged and po..." | Read more » over 6 years ago
bhickman "Hi donblair, thanks. There is still a bit of development to be done, especially for extended deployments, but I think the design shows promise. I ..." | Read more » over 6 years ago
donblair "Ben, Fantastic job on this! Excellent descriptions of the entire system -- the electronics, the probe design, and the calibration procedure. Ver..." | Read more » over 6 years ago
mathew "for completeness' sake: Check out @edwardmallon's note: https://publiclab.org/notes/donblair/09-08-2015/rubba-stoppaz#c13904 Chris fastie's Nalgen..." | Read more » almost 7 years ago
tonyc " hasn't lost a drop! " | Read more » almost 7 years ago