New design multi functional occluder
GLS8266-II: Shiny silver coated plastic rim lens, aluminum case
GRK8909: Up-Down auto capture & measure GRK8909A: 4 directions auto capture & measure
LED, Halogen bulb optional C, E, K Chart optional
GD8700A: High quality, with A grade lens and parts; GD8700: Economic design, with AB grade lens and parts; Grey & Black outside color for option