User's Manual
  How to Use 
 24 
When the heart rate can’t be detected 
LED 
Issue 
How to solve 
It is likely that the device is not 
fitted correctly onto your wrist. 
Wear the product closely around 
your wrist. Tighten the wrist band if 
your pulse is not measured 
correctly. 
It is likely that the device is not 
fitted correctly onto your wrist or 
the temperature on the surface of 
your skin is too low. 
Wear the product closely around 
your wrist. Tighten the wrist band if 
your pulse is not measured correctly 
and warm your wrist and fingertips if 
they seem cold. 
Heart rate zones 
You can check your heart rate zone using the product LEDs. Setting can be made via PULSENSE View to 
determine when the LEDs will illuminate. See below table for the available settings. 
LED 
% of max. 
heart rate 
LED settings 
TAP 
FLASH 
ON 
OFF 
Under 40% 
Blinking 
OFF 
(If you tap, the LED will blink) 
- 
40~49% 
Blinking 
ON 
- 
50~59% 
↑ 
↑ 
↑ 
- 
60~69% 
↑ 
↑ 
↑ 
- 
70~79% 
↑ 
↑ 
↑ 
- 
80~89% 
↑ 
↑ 
↑ 
- 
Above 90% 
Blinking (Faster) 
- 










