We have an older, triple-hand Aurastar with Biopulsar software that works perfectly on an older computer. Requires a serial port on the computer, and not just an adapter. The software also cannot be updated, as they no longer support these older systems.
Besides that, we've found it very accurate, but not central to our research. We include instruction book, color printer, and carrying case.
For details, please visit us online:
Biopulsar for Sale
You can contact me through the website if you have any questions. Thanks!