Mister Mojo here and we’re going to go through an EU Error. U means used. The meter thinks that it’s receiving a used strip. I always think of the words of the song, slow down, you move too fast. It’s very important that when you place the strip in the meter that you wait for it to show CH for checking and that the blood icon flashes like that. Now you are ready to receive a sample. The second method of receiving an EU Error is when people place the blood on the strip and then place it into the meter. You will always get an EU Error. So slow down, don’t go too fast, wait till it shows CH for checking, and the blood icon shows and you will get a great sample every time.