1. Before use: How to charge
3. Using the optical heart rate sensor
OHR-30
Never use this device if you are using a pacemaker.
Warning!!!
• Secure the sensor appropriately using the wrist band so that the optical sensor part makes
close contact with the skin.
• If an allergic reaction or skin inflammation occurs during use, stop using immediately, and
consult with a doctor.
• When the outside temperature is low, the heart rate may not be measured correctly. In these
situations, use your cycling wear or other object to warm the sensor, and then perform
measurement.
• This sensor cannot be used underwater.
Wear the optical heart rate sensor on your arm.
Before wearing the heart rate sensor
2. Wear the sensor on your wrist, forearm, or upper arm using the wrist band.
Adjust the length of the wrist band, and secure the sensor in place. Overtightening the wrist
band may cause discomfort during measurement.
1. Press the heart rate sensor button to turn on the sensor.
The indicator flashes blue.
Press
LED indicator
2. Pairing
