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*Price and Stocks may change without prior notice
*Packaging of actual item may differ from photo shown
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About American Educational Reaction Timer
Light, sound, and touch stimuli may all be measured with this battery operated digital timer. Reactions times are measured in hundredths of a second. Record elapsed time with either the hand or foot switch. Comes with instruction sheet. Requires 4 AA batteries which are not included. Grades 3-9. Ages 8-15.
