The sensor is a solid-state, triaxial rate gyro configured from three single axis, matched gyros, driven by a microprocessor which provides bias removal and scale-factor compensation using rule-based logic, plus a Built-In-Test-Equipment (BITE) function. Power conditioning necessary to allow operation from a 24 volts DC supply is also implemented within the sensor enclosure. The microprocessor system supports serial data communication via an RS-232 bus.