Model: 66C (Visual inspection instrument) 1.A unique visual instrument for surface inspection in the world. 2.3.8mm len(1/18 sensor),LED light with five-level adjustable brightness. 3.The handle is made of waterproofing material,reaching to IP65 level, which can be soaked in and sterilized with alcohol. 4.1200mA battery and long standby time. 5.3.0" LCD monitor,5 times of HD images(960*480 pixels) 6.Ergonomic design and elegant in fashion. 7.The probe is designed according to the human ear length , family healthcare,beauty calon. shop.etc.