SKU: 30678076201

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

Sale price$283.50 Regular price$315.00
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Description

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

Green Series™ 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:
    • Micro - allows quick entry into small, undilated pupils.
    • Small - provides excellent view of fundus through an undilated pupil.
    • Large - general examination of the eye through dilated pupil.
    • Fixation - graduated cross-hairs for measuring eccentric fixation or locating lesions.
    • Slit - used to determine levels of lesions and tumors.
    • Cobalt 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-Free filter - filters out red light for easy identification of veins, arteries and nerve fibers.
    • Polarising 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.

Rheostat Control

Vary the power of illumination with the smooth turn of a dial.

Aperture Selection Disc

Switch easily between 6 apertures via a disc on the head.

Six Apertures

A wide range of practical apertures to select from.

LENS Selection Disc

Focus on the fundus, cornea, iris and other ocular structures.

Two Filters

Red-free or polarising filter can be used in tandem with any aperture.

25020 | Diagnostic Otoscope

  • The LED lamp provides light output for true tissue colour and consistent, long-lasting performance.
  • Fibre optics project cool light to the distal tip with no reflections or obstructions for superior views of the tympanic membrane.
  • The wide-angle viewing lens allows for instrumentation under magnification.
  • Insufflation port for manipulation of the tympanic membrane.
  • A sealed system for pneumatic otoscopy and accurate diagnosis of otitis media.
  • Variable illumination strength via the handle rheostat dial.

LED + Fibre Optics

Allows a completely unobstructed view in true tissue colour.


Rheostat Control

Vary the power of illumination with the smooth turn of a dial.


Wide-angle Viewing Lens

With easy access for cleaning.



Insufflation port

Attach an insufflation bulb to test the mobility of the tympanic membrane via pneumatic otoscopy.
Shipping Notes
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
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SKU: 30678076201

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4.8 ★★★★★
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Ryan
Lexington, US
★★★★★ 1
One Star
Format: Paperback
Exactly the same as the free PDF I downloaded online for my student, only this costs $26 plus tax.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 3, 2017
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funmi adebayo
Los Angeles, US
★★★★★ 5
Easy read
Format: Hardcover, Format: Hardcover
I’m an NP student, and I find this book easier to read than the one recommended in school. The school-recommended book is almost $300, which is much cheaper. This book is a better read that breaks down complex concepts in a way that’s easy to understand. It should be used alongside NP books to help you understand your scope of practice. The book is written by an MD, which is a huge asset in terms of knowledge. The digital version includes the code, but I haven’t tried it yet. .
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Reviewed in the United States on February 17, 2026
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lkmcnair
Cuba, US
★★★★★ 5
Dr Ferri's Clinical Advisor '26 is, as always, a fabulous resource for any medical or NP practice!
Format: Hardcover
Excellent resource, as always from Dr Ferri. Well worth its generous weight to use a resource other than UptoDate once in a while. Besides, for us medical providers who have been in the calling many years, Ferri's Clinical Advisor 2026 is better at maintaining ones arm strength than lifting an iphone, plus safer and more accurate than the use of AI;)
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Reviewed in the United States on February 13, 2026
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Inez G
Dallas, US
★★★★★ 5
You wont regret!
Format: Hardcover
Love! Love! LOVE! Everything in one book! Plus you get the e-version included as well! I am in NP school and the differential diagnosis book my school required is a joke! I took a chance on this book and am so glad I did! It's a big book! So plan on leaving it on your desk or tabletop, but at least youll have access to the ebook across your devices
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Reviewed in the United States on September 11, 2025
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Ticked off
Phoenix, US
★★★★★ 3
Sketchy citations.
Format: Hardcover
Retired MD. Keeping up for the sake of family, friends and myself. I was looking for something like the “Medicine” book I had third year of med school. This is quite a bit more comprehensive. HOWEVER, the references/citations are hopelessly effed up. In the e book chapter on CHF, every reference I checked was about TRANSSEXUALISM in some way!! You authors/editors have some major work to do. I checked other chapters too. Seems even in Cirrhosis chapter the citations are to urology journals, total non sequiturs. HELP!!
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Reviewed in the United States on November 27, 2025

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