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From: langwadt on 11 Aug 2010 14:50 On 11 Aug., 19:49, Fred Bartoli <" "> wrote: > OBones a écrit : > > > Herman wrote: > >> Any one know how the sensor in these works? The "Clear Blue" device > >> has a > >> sensor that does some type of enzyme test. > > > It's an optical sensor that reads the bar that you would have seen with > > your own eyes. > > Well, it reads it more precisely, but still, it's the same principle. > > Oh, I thought it was some kind of girth measurement device :-) > At some point this should give pretty reliable indication. > with some it might not be that noticeable a change :P -Lasse |