A quadrupole mass spectrometer for use in analyzing gas components in a test piece is made in a constitution in which resistance heating of a grid is materialized, and in which a high-accuracy analysis of the gas components is possible at a low cost while preventing the sensitivity from lowering. The first and second charging areas are located in a common plane, each having at least one coil for wirelessly charging a charge-receiving device placed in proximity thereto. A computer sends a request to a server to download the particular data to a particular storage device. 5% by weight of one or more of the elements Al, Ga, In, B, Y, La, Ge, Si, P, As, Sb, Bi, Ce, Ti, Zr, Nb and Ta. In a preferred form, the electronics module and sensors are wireline insertable and retrievable into a side pocket mandrel in the tubing string.