Of course you may all buy a Certifier. We sell it from TSI AB in Sweden, just drop me a line if you have any questions. It is perfectly alright even if you are just curious and don't intend to buy one
The Certifier is portable, low-cost (less than half the price of competing devices) and with high performance.
http://www.tsi.com/biomedical/biomedical.htm Karin
