Electrical Horizon Gyro provides a continuous visual display of the aircraft attitude with respect to the earth for maneuvering around the longitudinal (pitch), and lateral (roll) axes, and yaw. A precision AC brushless motor is featured in the Artificial Horizon Electrical Attitude gyro. The Power failure drops into view whenever the power is insufficient for operation of the gyro. Power Supply: 14VDC Dimension: 3-3/8"x6.46/164mm Weight: 2.4lb/ 984g