Welch Allyn LED GS777 Elite Wall Unit - Coaxial Ophthalmoscope & Diagnostic Otoscope

Reccomended to order 

https://www.sealmedical.com/products/aw-opticlar-standard-diagnostic-set-twin-handled-wall-unit?variant=43005997088988

Green Series™ 777 Wall Transformer
Help reduce facility cost with a more energy efficient product
Help reduce risk of cross contamination by reducing contact with no on/off switch
Help improve work flow with contoured handles that automatically turn on/off
Quickly and easily upgrade from the Welch Allyn 767 Wall Transformer to the GS 777 Wall Transformer

11720 | Coaxial Ophthalmoscope
LED light for true tissue colour and consistent, long-lasting performance.
The coaxial optics produce a shadow-free spotlight, easier entry into undilated pupils and a larger field of view compared to standard ophthalmoscopes.
6 apertures:
MicroMicro - allows quick entry into small, undilated pupils.
MediumSmall - provides excellent view of fundus through an undilated pupil.
LargeLarge - general examination of the eye through dilated pupil.
FixationFixation - graduated cross-hairs for measuring eccentric fixation or locating lesions.
SlitSlit - used to determine levels of lesions and tumors.
Cobalt FreeCobalt blue - used with flourescein dye to view small lesions, abrasions and foreign objects on the cornea.
2 filters can be used in conjunction with any of the above apertures:
Red FreeRed-Free filter - filters out red light for easy identification of veins, arteries and nerve fibers.
polarising filterPolarising filter - virtually eliminates corneal reflection.
28 focusing lenses with a range of -25 to +40 diopters, adjustable via easy-to-reach maywheel.
Rubber brow-rest prevents scratching of eyeglasses.
Variable illumination strength via the handle rheostat dial.