20 ft: Hand Symbol (8 Line) Chart Unavailable The HeartStart OnSite is designed

The HeartStart OnSite is designed with innovative technology

Auto shutoff when not in use

Features a semi-rigid comfort ring that holds the bag open

parents and students

Half leg 25" and Full leg 32"

20 ft: Hand Symbol (8 Line) Chart Unavailable The HeartStart OnSite is designed(9" x 14") Hand optotype chart for vision testing at 20 feet. Hand symbol visual acuity charts are great for testing preliterate children. May be wall mounted or used with illuminated cabinets (66003, 66004, 66016, 66090). Having only one optotype used in different directions, Hand symbol charts are similar to Tumbling E and Landolt C charts. Often used for preliterate children in school screenings, the child simply indicates which direction the hand