Hi

You just need to go through the set up

There is a section under "TRAINING" called "ALERTS"

Here you can set both SPEED/PACE alarts and heart rate zone alerts.

Then, when you run, make sure you START the stopwatch, it will then
apply these thresholds and you will hear a VERY CLEAR BLEEP when you
over / under exert.

Hope that helps

Regards,

Tristan

www.heartratemonitor.co.uk