Duo & Nano Basics
All you need to know about Center Health meter and test strip subscription.
- I'm running out of strips. How do I upgrade my subscription?
 - Are the Center Health meters waterproof?
 - I received the control solution - how do I use it?
 - Can other brand test strips work with the Center Health meters?
 - My Duo doesn't fit properly with my phone case on, what should I do?
 - Does my Duo or Nano need to be calibrated?
 - Are the Center Health meters available outside of the US?
 - My iPhone doesn't have a 3.5mm headphone jack. Can I still use the Nano with Apple's 3.5mm to Lightning adapter dongle?
 - Are the Center Health meters FDA approved?
 - What's the warranty on Center Health meters?
 - Can I use my FSA or HSA card to pay for Center?
 - Do Center Health meters support ketone testing?