At the heart of your training is the Coded T31. The purpose of the T31 is simple: to transmit your heart rate to your wrist unit. Slim and light, the ECG (electrocardiogram) accurate transmitter is designed for all weather conditions and is 100% water resistant.
- Built to last with up to 2,500 hours of training usage
- Prevents cross-talk from other electrical devices for accurate measurement of your training
