"...one of the more expensive Polar watches, usually retailing for around £95, but if you look hard enough you can get a good deal. Included with the watch was a Polar WearLink coded transmitter, which is a more comfortable version than you get with other models (the F5 and F6), and the coding means that it doesn't cross-talk with other HRMs if you are doing a class, it will protect the information received from your heartrate without getting mixed up ..."
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