10 ft: SZN (11 Line) Chart Housebrand easy-to-use

easy-to-use

Provides a fast 1-minute universal contact time from an alcohol-free hydrogen peroxide formulation

With precision components and a user-friendly design

Influenza A virus and more

auditory ossicles

10 ft: SZN (11 Line) Chart Housebrand easy-to-use(9" x 14") Sloan optotype chart for vision testing at 10 feet. Features two smaller groups 10 20 to 10 8 for repetitive eyesight testing (20 40 to 20 16 equivalent). May be wall mounted or used with illuminated cabinets (66003, 66004, 66016, 66090). The Sloan optotypes were developed on the same basis as Snellen optotypes. Sloan optotypes do not use serifs however, but do use a logarithmic geometric progression.