powertap-powercal-with-heart-rate-and-speed-sensor
powertap-powercal-with-heart-rate-and-speed-sensor, The PowerCal computer head converts heart-rate data to a power reading.Calculates in watts and kilojoules based on the user's heart rateDisplays power on any existing ANT+ compatible power computer display or watchUses the same units of measure across a variety of disciplines or cross-training activities