my project for this thread is to build a ph tester that connects to a computer to continuously monitor a res. if anyone has any experience or advice, please post what you know.
pH meter - Wikipedia, the free encyclopedia
The Simplest Possible pH Meter
pH meter construction
the second link looks very simple, and might be accurate with a little adjusting. only thing I'm not sure of right now, how do I make a test probe? just 2 wires or nails or something, or does one have to be copper and the other silver or something?
pH meter - Wikipedia, the free encyclopedia
The Simplest Possible pH Meter
pH meter construction
the second link looks very simple, and might be accurate with a little adjusting. only thing I'm not sure of right now, how do I make a test probe? just 2 wires or nails or something, or does one have to be copper and the other silver or something?