How long does a diabetic testing device long?how often should you change to a new one?my husband got his in 2008 and has been using it since then.

It's totally: variable and depends upon the device. They can work for many years. If you're getting accurate results -- you can check by doing a finger stick the next time you have a lab blood sugar drawn and comparing the results - you don't need a new one unless your insurance coverage necessitates a change or you find one you like better for some other reason, such as a new feature, speed, amount of blood, e