... 3,AAA batteries 4,Convenient & portable 5,1.0um resolution Hand Held Optic Fiber Inspection Microscope, FK-H400 Model :FK-H400, ... types are available (200x or 400x).3, High intensity white LED for clear and enhanced vision.4, Detachable ø2.5mm ... Laser safety filter is equipped for eye protection.Hand Held Fiber Inspection Scope, FK-H400Hand Held Video Fiber Inspection Microscope, FV-5500AVideo Fiber ...