ANT + and Bluetooth connection, worn on the chest.
Using ECG measurement technology, (electro cardiogram) accurate heart rate data will be provided by this monitor.
Good waterproof performance, HR40 can be used in rainy days and is also very resistant to sweat.
Built-in CR2032 button battery.
Up to 340 hours of battery life.
The HR40 supports almost all heart rate receiving devices.
It is possible to display heart rate data on compatible mobile apps, chronographs and wristwatches via wireless transmission.
For IGPS 630/620/520/320 meters, also Garmin compatible via ANT+