SUUNTO t3 - Manual (Page 19)

NOTE It is not possible to reset the stopwatch while it is running. You must stop
it before resetting it.
NOTE If the stopwatch is running, and you switch back to the Time mode, the
stopwatch will be displayed on the top of the screen. To stop the stopwatch
go back to the Training mode.
To toggle between the Heart Rate view (HR shown in the middle of the screen, before connecting
to the heart rate belt) and the Training Effect view (TE shown in the middle of the screen before
starting the stopwatch), long press the BACK button.
2 sec
2.4.1. Training Effect
A unique feature of Suunto t3 is its ability to record and display Training Effect. Training Effect
(TE) shows the effect of a workout on your aerobic fitness on a simple one-to-five scale. For the
first time, you will know in real time how much your workout is really improving your fitness level.
With Training Effect, you can ensure that your workouts always give the intended result.
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