nice, pH is on the ball...those first two links are the same unit, ive seen that one already but havent been able to figure out what kind of input voltage it needs (much less where it goes). also, how big is the thermistor on that unit? big enough to not fit under a cpu?
the schematics in the other link dont look too bad but i doubt i could get that to fit behind a drive cover. also that takes in 220V so my american 115V volts wouldnt be good for that. im sure using other transformers and other parts would fix that, but thats beyond my knowledge of circuitry...
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Spoon!!
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