10 ft: Texas Approved HOTV (9 Line) Chart SNS Exclusive The alarm uses a 9V

The alarm uses a 9V battery (included)

Follow with normal hand washing and test again under UV light

Guidance in answering difficult questions posed by students

Compares to Advil

10 ft: Texas Approved HOTV (9 Line) Chart SNS Exclusive The alarm uses a 9V(9" x 14") HOTV optotype chart for vision testing at 10 feet. Recommended by the Texas Department of Health for screening young children. May be wall mounted or used with illuminated cabinets (66003, 66004, 66016, 66090). HOTV Texas eye test was created specifically for the state of Texas Health Department protocol. It features crowding bars to help identify signs of separation difficulties. Also, HOTV chart helps to detect functional defects such as