Reaction Timer for TSA/ALBA, B1-1000.10, £11.70 per pair
The Reaction Timer Switches connect to the DIN sockets at the back of TSA or ALBA.
TSA is set to the Gap Time mode and when the first pupil presses their switch the LED on the front panel illuminates. The second pupil presses their switch as soon as the LED comes on. The reaction time is then displayed on TSA.