Why do my hands have to be underwater for 2 seconds at the start and for a lap change?

Our software analyses your swim data to intelligently determine your actual swim time, so you can leave the stopwatch at home. But there are a few things to be aware of:

  1. After you have started the recording (LEDs are flashing green), the software waits for you to push off before the timer begins. To trigger the push-off, both hands need to be underwater for at least 2 seconds.
  2. The software also looks for 2 seconds of continuous submersion to detect a lap change ie. gliding into and/or out of the wall.
  3. When you finish your swim, or are taking a rest between laps, stop your recording with a double press of one button. When you're ready to go again, start a new recording by double pressing one button again. This will keep your data clean and ensure it doesn't get corrupted by any sculling movements or non-swimming hand actions you might make while you're catching your breath.
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