Saelig Company, Inc has introduced a novel solution to monitor driver fatigue that is based on Plessey’s multi-award winning EPIC sensor technology. An array of EPIC electric potential sensors can be built into a vehicle seat back, with optimal sensing location chosen to eliminate differences in the operators’ height and build. Electrical artifact noise caused by movement is minimized by placing the sensors on the lower part of the seat back, away from the shoulders. The system uses a capacitive “driven-ground-signal” plane, placed under the seat cover fabric on the base of the seat, to form a system completely hidden from the car occupant. Additional noise reduction can be achieved by coupling this “driven-ground-signal” to the steering wheel. The system has been demonstrated to be immune to electrical noise sources within the vehicle, detecting > 95% of heart beat peaks over a variety of driving conditions.