Both manual and automatic units feature operator to patient communication (talkover) which is built in

1 - QuikClot 3" by 4 yds Sterile Z-folded Combat Gauze

The Optec 5500P comes with a corded remote control that offers greater flexibility

but kid friendly

10 ft: SZN (11 Line) Chart SC Both manual and automatic units(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.