Polar T31 Non-Coded Transmitter and Belt Set
Slightly different to the Polar T31 coded transmitter, the slim, light and waterproof T31 transmitter doesnï¿¢ï¾€ï¾™t have the benefit of coding for interference free transmission. However, its purpose remains the same: to transmit your heart rate to your wrist unit ECG (electrocardiogram) accurately. Medium strap fits 25 to 54 inch chest size. Compatible heart rate monitors include, but are not limited to: FT1, FT2, FT4, FT7, FT40, FT60, FT80, RS100, RS300X, RS400, RCX5.