I have an SC-331 which I have put 2 new CR2032 batteries in.. put it down pressed lightly on it, and it will only weigh in KG,, I have checked the switch on the back and its on Lb's,, but it will only weigh in KG.. took batteries out started all over again.. it still only weights in KG.. please send me some help to fix this problem E-Mail... Millerwrkm@aol.com.. Thank you so much... Barbara Miller