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.
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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