Stay strong and get those test results.

This is the model that I and many others have gotten. Seems to work OK but, it might take a while to figure out how to upload the data to your PC and Sleepyhead. The "instructions" are a joke. Good luck. ~~ http://smile.amazon.com/CMS-Finger-Pulse-Oximeter-Sofware/dp/B00B8L8ZXE?ie=UTF8&psc=1&redire...