Basically, today I found out something interesting. Roche has two slightly different versions of the XS PT strips, this apparently is related to the INRange series of devices. I went to order some more strips from my (online) provider (here in Australia) and found the following two products (at slightly different prices).
more complete details here:
cjeastwd.blogspot.com
more complete details here:

Roche CoaguChek XS PT Test vs PT Test PST
So, today I found out something interesting. Roche has two slightly different versions of the XS PT strips, this apparently is related to th...