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#18
01-19-2008, 03:37 PM
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meter
I got both the tds and a ph meter off ebay..have checked them against my test kit and they seem to work pretty good. Mind you I still double check occassionally to make sure thay are still accurate. So far so good. Got my refractometer as well..best buy I made in a long time. Checks salinity quickly and is accurate.Ebays ok for some things
 
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