POLAR S720i - Manual (Page 78)

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*Optional Polar Cadence Sensor or Polar Power Output Sensor required.
3. Press the stop button to exit the reset display.
Press and hold the stop button to return to the Time of day display.
Returning to your previous maximum value
Start with the display showing Max Spd, Max Cad*, Max Alt or Max Pwr* in
the records file.
1. Press and hold the signal/light button to start returning to the previous
value. Return OLd appears and the value starts to flash.
2. You can still cancel the reset by pressing the stop button. If you are sure
you want to return to the previous value, press OK.
3. Press the stop button to exit the display.
Or, if you want to start resetting your maximum value to zero, press and
hold the signal/light button. Reset VALUE starts to flash. Once your have
reset the value you cannot retrieve it.
4. You can still cancel the reset by pressing the stop button. If you are sure
you want to return to the previous value, press OK.
5. Press and hold the stop button to return to the Time of day display.