1C30.11 - Free-fall Timing Ball
To measure the free fall time of a ball
Press the "on-off" button. -t- will start flashing on the display. Raise ball to desired height, press the "start-stop-mode" button. Release the "start-stop-mode" button at the instant the ball is dropped. Impact with the ground should stop the timer. The time will flash on the display after the impact. If you press the "start-stop-mode" button, you can toggle between time and height measurements. Resetting the display can be done with the "on-off" button.