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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 about 2 years ago 0
Water sampling workshop with a "Mega-Coqui" kit with One Cranston @warren about 2 years ago 3
Pros/cons to cheap handheld water meters for pH, TDS, conductivity? @warren about 2 years ago 3
Build a sound-generating Coqui conductivity sensor (new version!) @warren over 2 years ago 6
7 Ways to Measure, Monitor, and Evaluate Water Quality @anngneal over 2 years ago 2
Build a Coquí: A Simple Water Conductivity Sensor (version 1) @akshaya over 2 years ago 22
An Arduino Based UnderWater Sensor Platform @EdMallon over 2 years ago 61
WATER-QUALITY: SUMMER 2019 QUEENSBRIDGE TECH LAB COMMUNITY SCIENCE PROJECT @SadiePrego almost 3 years 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 almost 3 years ago 1
Inexpensive conductivity probe Step 1 - Sensor Probe design (revised) @roberts_ecofarm almost 3 years ago 2
Inexpensive conductivity probe for drinking water monitoring network @roberts_ecofarm almost 3 years ago 4
Voltage generation for conductivity sensor @roberts_ecofarm almost 3 years ago 2
DIY conductivity Sensors @roberts_ecofarm almost 3 years ago 6
DIY Science Lesson with the Coqui @pdhixenbaugh about 3 years ago 28
What probes to get with data loggers? @pdhixenbaugh over 3 years ago 4
Adding a jack to the Coqui @imvec over 3 years ago 2
Modified TDS sensor as Conductivity Sensor? @MadTinker over 3 years ago 9
Road Salt and Salmon @acjames76 over 3 years ago 0
Substitution for conductivity meter @Ag8n over 3 years ago 7
conductivity sensor electrolysis a concern in moving water? @MadTinker over 3 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 almost 4 years ago 0
Anyone with experience using 316L welding rods for conductivity sensor probes? @MadTinker about 4 years ago 0
AstroPlant RPi sensory system @Sidney_AstroPlant over 4 years ago 10
Riffle Device: Water Conductivity Sensor @rebeccah about 5 years ago 7
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