The device is a not a diagnostic tool but is a great tool for for identifying the susceptible Oral cancer. It works on the principle of optically based technology called "fluorescence technology." The device is totally maintenance free & rugged and works with disposable batteries. • Device is an adjunctive screening device that uses fluorescence technology to help clinicians identify oral abnormalities. • Device increases the efficacy of oral exams • Device uses a proven, optically based technology called "fluorescence technology." • It uses a blue light (435–460 nm) that allows a clinician to identify oral cancer, pre-cancer and other abnormal lesions at an earlier stage "This technology identifies dysplastic lesions -even microinvasive lesions that were completely 'normal' looking with visible light, even to the suspicious eye of an oral pathologist." Handheld : Lightweight and portable User Friendly : Simple visual