The human meters can be used to know how the numbers are TRENDING but are not reliable for accurate numbers in ferrets. Abbott's Alpha Trak IS reliable for accurate numbers for ferrets. Vets often can order them for people. See these vet posts: http://ferrethealth.org/archive/FHL8176 http://ferrethealth.org/archive/FHL2596 Sukie (not a vet) Recommended ferret health links: http://pets.groups.yahoo.com/group/ferrethealth/ http://ferrethealth.org/archive/ http://www.afip.org/ferrets/index.html http://www.miamiferret.org/ http://www.ferretcongress.org/ http://www.trifl.org/index.shtml http://homepage.mac.com/sukie/sukiesferretlinks.html [Posted in FML 6260]