The VTi has been extensively tested and the results from frontline trials have shown it has indicated accurately on people that have developed a high temperature. At the point of noticing a changing VTi traditional equipment has been used to confirm temperatures and testing would award a similar accuracy range to that of a thermometer.
The key difference of a VTi is that it continues to monitor temperature health when traditional equipment is not in use. It will also indicate when a person’s temperature returns to a normal range.