Then you will be redirected to the HR tab where you have to scan for ANT+ HR monitors. If you are using an ANT+ Heart Rate Monitor, you need to go to Settings Menu and Select ANT+ HR sensor. If you previously used another ANT+ heart rate strap, be sure to set the previous monitor as not active in order to avoid conflicts with the BLE HR device. If you are using a Bluetooth Smart Heart Rate, you need to go to Settings Menu and Scan for a Bluetooth Sensor. Rest and maximum Heart Rate in the Heart Rate tab.FTP (Functionnal Threshold Power) which is the best wattage you can hold for an hour.In order to have a better accuracy, you need to enter your individual parameters in Settings Menu which are : For people who don't have a smart trainer but still want to ride in virtual worlds, we developped an advanced matching algorithm that computes power directly from your heart rate monitor.