TSA Reaction Timer Switches (pair)The Reaction Timer Switches can be used with the TSA Timing device (available to purchase separately) to assess a students reaction times. The Reaction Timer Switches connect to the DIN sockets at the back of TSA. The students work in pairs and the first student pushes the red button on the top of their switch. The second student must then press their red button as soon as they see the LED light indicator on the TSA illuminate.External variables can be controlled to see how they affect reaction times. These could include drinking a caffeinated drink or listening to music through headphones during the experiment.The Reaction Timer Switches could also be paired with the TSA Foot Switch (available separately) which allows investigation comparisons between the participants hand and foot.The TSA and Foot Switch are not included but are available to purchase separately.