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Water conductivity monitoring

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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

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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 for more information.


Activities

Activities for people to test methods (these develop over time)

Add an activity  or request an activity guide you don't see listed

Activities should include a materials list, costs and a step-by-step guide to construction with photos. Learn what makes a good activity here.


Existing work

Title Author Updated Likes Comments
Building the new Coqui @natevw 9 months ago 0
Water sampling workshop with a "Mega-Coqui" kit with One Cranston @warren 9 months ago 3
Pros/cons to cheap handheld water meters for pH, TDS, conductivity? @warren 9 months ago 3
Build a sound-generating Coqui conductivity sensor (new version!) @warren about 1 year ago 6
7 Ways to Measure, Monitor, and Evaluate Water Quality @anngneal over 1 year ago 2
Build a Coquí: A Simple Water Conductivity Sensor (version 1) @akshaya over 1 year ago 22
An Arduino Based UnderWater Sensor Platform @EdMallon over 1 year ago 61
WATER-QUALITY: SUMMER 2019 QUEENSBRIDGE TECH LAB COMMUNITY SCIENCE PROJECT @SadiePrego over 1 year ago 0
Could we just use the PWM feature of an Arduino to generate the 50% duty cycle we need for the Coqui or for a water conductivity meter? @roberts_ecofarm over 1 year ago 1
Inexpensive conductivity probe Step 1 - Sensor Probe design (revised) @roberts_ecofarm over 1 year ago 2
Inexpensive conductivity probe for drinking water monitoring network @roberts_ecofarm over 1 year ago 4
Voltage generation for conductivity sensor @roberts_ecofarm over 1 year ago 2
DIY conductivity Sensors @roberts_ecofarm over 1 year ago 6
DIY Science Lesson with the Coqui @pdhixenbaugh almost 2 years ago 28
What probes to get with data loggers? @pdhixenbaugh about 2 years ago 4
Adding a jack to the Coqui @imvec about 2 years ago 2
Modified TDS sensor as Conductivity Sensor? @MadTinker over 2 years ago 9
Road Salt and Salmon @acjames76 over 2 years ago 0
Substitution for conductivity meter @Ag8n over 2 years ago 7
conductivity sensor electrolysis a concern in moving water? @MadTinker over 2 years ago 3
In addition to testing for pH, what other water quality testing have you utilized, such as turbidity, conductivity, dissolved oxygen (DO), etc.? Can you share your experience with these? @gilbert over 2 years ago 0
Anyone with experience using 316L welding rods for conductivity sensor probes? @MadTinker almost 3 years ago 0
AstroPlant RPi sensory system @Sidney_AstroPlant about 3 years ago 10
Riffle Device: Water Conductivity Sensor @rebeccah almost 4 years ago 7
Mapping Lead-Free Water @smmontgom almost 4 years ago 0
Planning for a new Riffle conductivity circuit @pdhixenbaugh almost 4 years ago 5
Conductivity and Temperature Meter @bhickman about 4 years ago 11
Conductivity Sensing: Open Questions @donblair over 4 years ago 7
Thermal Fishing Bob Development Workshop on Northeastern's Campus @kgrevera about 5 years ago 2
Thermal Fishing Bob Development Workshop @kgrevera about 5 years ago 1
Mehak, Virginia, & Tori Conductivity Research Summary @mehaky over 5 years ago 0
Reflection Salty Scandal @vvincent over 5 years ago 0
Connor, Matt, and Jess' conductivity research summary @mattmullen over 5 years ago 0
Reflection on Sensor Journalism @Jenn_Zarate over 5 years ago 0
A Reflection on Sensor Journalism @madelinebilis almost 6 years ago 0
Conductivity Results from 3 Water Samples @madelinebilis almost 6 years ago 0
Coqui BBv1.0: Testing conductivity of a solution @donblair almost 6 years ago 1
Follow up — Group 2 Water Sample Results @jacktemp almost 6 years ago 0
Follow up on Bridget and Casey's water samples @caseyrcampbell327 almost 6 years ago 1
Collect 3 Water Samples for Testing @amarini almost 6 years ago 2
Duty Cycles & 555s --> linearity! @donblair almost 6 years ago 16
Coqui draft board design on Upverter @warren almost 6 years ago 8
How much are Coqui measurements affected by hot/cold water? @warren almost 6 years ago 16
Accessible procedure for calibrating conductivity measurements? @donblair almost 6 years ago 3
Recap: Open Water Workshop, 7/12/14 @donblair almost 6 years ago 8
Simple 555 conductivity meter @donblair almost 6 years ago 7
Using an Audio Jack to Assess Conductivity @donblair about 6 years ago 2
Riffle dev: 'Fun w/ Five-Five-Fives' @donblair about 6 years ago 12
RIFFLE: Confronting Confusing Corrosion Condundrums @donblair about 6 years ago 8
Conductivity meter @JSummers over 6 years ago 2
Video on geocoded conductivity readings from strip mine watersheds @warren about 9 years ago 0
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