User's Manual
  Using this Device Safely 
 7 
Notes on Using the Product and Components 
Warning 
Exercise according to your physical capabilities. 
Stop exercising and consult your doctor if you feel unwell during exercise. 
This product is a highly accurate sensor and able to measure your pulse rate; 
However, this is not a medical device.  
If you have any concerns, consult your doctor before using this product.  
Do not keep your eyes on the device while exercising; otherwise you could fall or cause a traffic 
accident. Pay attention to your surroundings while using the device. 
Do not use or store this product in the following environments. 
It may cause an electric shock or fire, or the product may malfunction or be damaged. 
- Locations with very high or low temperatures or humidity 
- Near volatile substances 
- Sooty or dusty places 
- Near a fire 
- Near a strong magnetic field (for example, near a loudspeaker) 
Do not disassemble this product, and do not attempt to repair this product by yourself. It may 
cause an electric shock or accident. 
Do not leave this product within reach of young children. 
Caution 
To avoid the possibility of skin irritation or discomfort from wearing the PS-100, you must keep 
the skin under the band clean and dry at all times. Do not allow water, sweat, dead skin, or dirt 
to build up under the band. Do not wear the product too tight. If you feel any discomfort, loosen 
the wristband or stop usage.  
Avoid water, sweat or dirt build up between your skin and the product. Clean as directed in 
“Looking after your device” on page 33 .  
During sleep your wrist may swell, loosen the band by one setting if it becomes tight. 
Do not pour water directly from the tap onto this product. The power of the tap water stream 
may be strong enough to compromise the product’s waterproof feature 
Do not wear this product in a bath or sauna. The steam and soap may compromise the 
waterproof feature or cause corrosion. 










