- View accurate heart rate information on all Polar training products (uses both 5kHz and 2.4GHz W.I.N.D. transmission for maximum compatibility)
- Put it in your gym bag. 5kHz coded transmission also allows you to see real-time heart rate on compatible gym equipment.
...Look for the Polar logo!
- Transfers heart rate information while swimming with products which support 5kHz transmission*
- New improved user-replaceable battery mechanism
- Compatible with:
FT1, FT2, FT4, FT7, FT40, FT60, FT80, RS100, RS300X, RS400, RCX5, CS100, CS200, CS300