The Planted Tank Forum - View Single Post - Arduino Diy pH probe
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post #13 of (permalink) Old 01-28-2013, 04:28 AM
Darkblade48's Avatar
Join Date: Jan 2008
Location: Toronto/Singapore
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Originally Posted by Jeffww View Post
The idea is to use a gas permeable membrane to hold some 4dkh fluid and use the ph meter to measure fluctations in ph and translate to co2 concentration. Using the membrane increases response time for CO2 measurement.
I think I mentioned this in another thread somewhere, but mistergreen was working on this project

Affordable CO2 sensor?


A Primer to Pressurized CO2 and A Primer to Planted Tanks
Eheim Pimp #362 - Eheim 2213 x2, Eheim 2028, Eheim 2217, Eheim surface skimmer and Eheim autofeeder.
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