Health O Meter® Wheel Assembly, 1 Set Exercise Ball Accessories Automatic shutdown Endoscopy Automatic shutdown Our Coaxial Ophthalmoscope uses a Halogen HPX lamp that provides 30% more light output for true tissue color and consistent long lasting illumination * 28 lenses from 25 to +40 diopters for better resolution * The coaxial optical system produces a shadow free spot and easier entry into undilated pupils * The crossed linear polarizing filter reduces corneal reflection * The red free filter may be used with any aperture * It has 18 possible aperture combinations for greater versatility * Otoscope uses Halogen HPX lamp and fiber optics for cool light with no reflections no obstruction * It comes with a wide angle viewing lens for instrumentation under magnification * The Lithium Ion Handle is just half the weight of current 3 For portability Optional wheels to be used on Health o meter Professional 400402 Series Beam Scales