Digital Biothesiometer VIBROTEST: Digital Biothesiometer Vibrotest is the essential tool for large-fiber sensory nerve evaluation quantifies Vibratory Perception Thresholds for evaluation of the Peripheral Neuropathy. It is essentially an "electronic tuning fork" whose vibration strength may be gradually increased until the threshold of vibratory sensation is felt by the subject. This device cannot be connected to computer for data transfer. Designed for large diabetic camps and clients who often carry for different locations for remote monitoring.