Digital Vibratory Perception Threshold Analysis System. It can be used both in standalone and PC based mode. Loss of sensation due to Neuropathy is the major cause of painless injuries to the feet. Such injuries result into chronic ulcerations and complications leading to large amputations. Digital Vibration Perception Threshold (VPT) Analysis, PC Based and Stand alone, Tabular trends of VPT, Printout and Interpretation.