"Kody Medical Electronics has introduced several diagnostic instruments towards this end. They have a range of instruments to measure vibration pulse threshold and detect sensation in the limb for testing for cardiac autonomic neuropathy. They have a range of digital biothesiometers for the measurement of vibration perception threshold (VPT) in small nerve fibres, which will result in a much earlier diagnosis of diabetic neuropathy than with nerve conduction studies. The higher the value of VPT, the greater the risk of ulceration.