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With theOH1+ Optical Heart Rate Sensor with Swim Goggle ClipfromPolar, you can keep tabs on your heart rate while you work out on land or in the water, with a watch or phone, or without. When on land, just clip the OH1 to the included armband and wear it around your upper or lower arm. The data collected can help you better maintain a steady, rhythmic pace while exercising. That data can be wirelessly transmitted to be displayed and stored in an app, such as Polar Beat, or on the display of a fitness device.

Key Features
Records Heart Rate with 6 LED Sensors
Bluetooth & ANT+ Wireless Technology
Can Stream to 2 Devices Simultaneously
Built-In Memory for 200 Hours of Data