With regard to the geomagnetic sensor 1, the control logic circuit 11 conducts control of the geomagnetic sensor 1. When the geomagnetic sensor 1 is installed in a cell phone device, the control logic circuit 11 reads the measurement values pertaining to the ambient magnetic field from the geomagnetic sensor circuit 12, obtains the offset value from the pertinent measurement values, and stores it in the fuse memory 13. At times of measurement by the geomagnetic sensor 1, the control logic circuit 11 reads the offset value from the fuse memory 13, and corrects the measurement values of the geomagnetic sensor 12 using the pertinent value. With regard to the temperature sensor 201, the control logic circuit 211 conducts control of the temperature sensor 201. During preparation of the temperature sensor 201, the control logic circuit 211 reads the result of measurement of the property pertaining to the ambient temperature from the temperature sensor circuit 212, obtains the initial value and correction value from the result, and stores the pertinent values in the fuse memory 213. At times of operation of the temperature sensor 201, the control logic circuit 211 reads the initial value and correction value from the fuse memory 213, and corrects the measurement values of the temperature sensor circuit 212 using the pertinent values. The correction coefficients a11-a22 of the magnetic sensors are measured during LSI shipment inspection. The correction data D1-D4 obtained from these correction coefficients a11-a22 are written into the fuse memory 315. The control circuit 308 inputs the detection outputs Sx and Sy of the magnetic sensors 310 and 311 to the internal register during geomagnetism detection. The correction data D1-D4 is read from the fuse memory 315. Detection outputs Sx and Sy are corrected using formulas (309) to (312).