POLAR T31 Transmitter Heart Rate Sensor New Unopened

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[Product]
POLAR T31 TRANSMITTER

[Product Condition]
New, unused, and unopened.

[Product Description]
The Polar T31 is a transmitter that measures your heart rate simply by wearing it and sends the data to compatible devices.
It is compatible with GymLink, which is compatible with gym equipment.
It can also be used underwater, making it ideal for swimming and training.

I have no personal experience with this product and am not knowledgeable about it, so I cannot answer any questions. Thank you for your understanding.