Public Lab Wiki documentation

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)

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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 for people to test methods (these develop over time)

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