Polar H1 Heart Rate Monitor Sensor with Strap

Comfort is key when training. Thats why Polar created the Polar WearLinkR 31 coded transmitter belt. It not only measures your heart rate but also seamlessly adapts to your body shapes so you feel as if its not even there. The transmitter consists of an electrode strap and a connector, and with its new side clip mechanism, its just as quick to put on as it is to take off.