Accessories for heart rate monitors and mobile apps

Enhance your training experience and achieve a more complete understanding of your performance. With Polar accessories you can upgrade your heart rate monitor or mobile application.

Select your product and find out which one is most suitable for your training.

Heart rate sensors

Slightly different to the T31 coded transmitter, the slim, light and waterproof T31 transmitter doesn’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.