The PowerTap PowerCal Bluetooth (ONLY) Heart Rate Monitor is the first and only heart rate monitor that acts as a power meter.
Cheaper than a traditional power meter, the PowerCal uses proprietary algorithms to translate your heart rate into power. Power is a language that is both easier to understand and more meaningful than beats-per-minute.
Regardless of the activity (cycling, running, gym training, etc.), the PowerCal will provide a good approximation of exercise intensity and energy expenditure. It uses Bluetooth SMART technology is and powered by a CR2032 battery.
This is a Bluetooth ONLY unit and will be sold without packaging.