Error C on the second test in a 20 pack
I received error C on the second test of a 20 pack of digital ovulation tests, and it says not to use any more tests with the enclosed tester. I'm going to buy a new pack today. Will I be able to use any of the remaining tests with a new tester? Like I said, I have 19 of 20 left, so I hate to just throw them away.