RION electronic compass, also known as three-dimensional electronic compass, is small in size, high precision and good stability; main push series: HCM inclinometer surveying and mapping high precision series, DCM inclination compensation series, DDM dynamic inclination compensation series; RION electronic compass is widely used in robots , Vehicle autonomous navigation, horizontal hole and vertical hole measurement, underwater exploration, aircraft navigation, equipment maintenance, navigation system, speed measurement, simulation system, GPS backup, car compass, virtual reality and other fields.