This is EKG/EMG shield which allow Arduino like boards to capture Electrocardiography Electromiography signals. The shield opens new possibilities to experiment with bio feedback. You can monitor your heartbeat and log your pulse, recognize gestures by monitoring and analyzing the muscle activity.

(all boards are shipped completely assembled, tested and calibrated so you should not do this unless you wat to see how things works)

Specification:
Stackable headers up to 6 channel may be stack and wired to A0-A6 analogue inputs
Calibration signal generation by D4/D9 digital output
Preciese Trimmer potentiometer for calibration
Input connector for normal or Active electrodes
Works with both 3.3V and 5V Arduino boards

For More Information

More information on gyroscopes and inertial navigation may be found on Wikipedia: BioFeedBack

Downloads & resources

Arduino Sample Code (provided on purchase)