Model Number: 920435-
The sleek and low-profile Polar H1 Heart Rate Sensor tracks heart rate during your workouts with a comfortable, adjustable soft chest strap. The H1 is compatible with Polar devices that use 5 kHz technology such as the RS100, RS300X, RCX5 FT4 and Polar GymLink equipped exercise machines.
*H1 is the updated replacement for WearLink+ Transmitter
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