In order to take your workouts to the next level, you need to measure your heart rate. The CATEYE OHR-31 Optical Heart Rate Sensor is a Bluetooth/ANT+ device that you can wrap around your wrist to measure your heart rate. It is IPX7 rated to withstand the elements.
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This heart rate sensor lasts up to 24 hours on battery. It pairs to a cycling app effortlessly to help you exercise in the right zone.
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