KELVIN® Reaction Tester Assembled Demo

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A fun electronic game to play with, either by yourself or with friends. By building and using this kit, the reaction of anyone can be tested. The object of this game is to anticipate when the LED will light up and to release the switch at that exact moment. If caught exactly when releasing the switch, the LED stays lit and you will be a winner.

Teacher Demo Unit, Assembled/Tested. Requires soldering and 9VDC battery.