meter maintenance

Hi I have a GlucoLab meter, and I've recently run into a problem with my testing strips: I've been given some packs with the code `C1` on the tubs, the strips themselves have black squares on the back, and my meter does not like them! I'd never really noticed before, but it seems I've been...

Hi, I have an Aviva Nano that I keep as spare one. I was wondering whether I should keep the batteries in or out. Batteries in - pro: internal battery always charged; cons: batteries may leak, batteries may exhaust. Batteries out - pros: save on batteries, no leakage possible; con...