Dinsmore Instrument Company was the world's first maker of Auto compasses and has had seventy-two years of experience, and many patents, for the correction of vehicle caused anomalies in compass readings. Dinsmore has designed and manufactured compasses for special uses as well as aircraft, mariners and vehicular compasses, and has aided designers in the use of the compass sensors.
In 2001, the Dinsmore Instrument Company licensed and sold manufacturing of the Compass Sensor products to The Robson Company, Inc. The Robson Company has continued the development and production of these products, invented by R. C. Dinsmore, and have kept the name Dinsmore Sensors in honor of this great and honorable man.

Dinsmore Sensor History