Why does the Accu-Chek Performa system still use a code key?
Roche Diagnostics retained the code key for 4 reasons: It can provide feature upgrades (such as faster test times and smaller sample sizes) without the need to buy a new meter. It is designed to prevent the use of expired test strips. It helps ensure more accurate results by reducing the inherent variability in all test strips. It is easy to use. Unlike some systems, which require you to scroll through multiple numbers to code the meter manually, the code key for the Accu-Chek Performa system just snaps in place.