Meet the Watteam PowerBeat: a professional-grade power meter that provides riders with normalized, average and maximum power data and exact cadence. It works on hollow aluminum cranks and delivers accurate data under various conditions. Riders are provided with left and right leg force measurements.
The device uses advanced strain gauge measurement technology to detect your power output. Its sensors attach to both crank arms and send the data to the brain of the system. The PowerBeat transmits the data via ANT+ or Bluetooth to your smartphone or cycling computer. It will be compatible with iOS and Android devices. More information is available here.