double post
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double post
Last edited by sheepdog; - 1st September 2008 at 14:01.
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What sensor will you be using? I ask because I have built one of these (without the amoniac gases bit) which not only works (activates relays) but allows the user to define the parameters, such as max/min temp, max/min humidity etc...
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i use MQ137 sensor for ammoniac gas
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