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you should have a little white thing on the side with a 4 digit code, each code goes with the test strips purchased. when the test strips are gone you only change that when putting in new ones. to change it, pull the little 4digit piece out and put the new one in that comes with the new test strips. hoped that helped

2006-06-25 05:52:07 · answer #1 · answered by Hi 3 · 0 0

1

2016-09-14 05:15:55 · answer #2 · answered by ? 3 · 0 0

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