A laminated electronic component includes a composite obtained by integrally sintering a plurality of laminated magnetic layers, internal conductors being formed in the interior of the composite. Shouldered holes arranged in linear spaced relation at predetermined stringer attachment locations on the deck engage resilient slotted pins extending from a top edge each stringer. This provides the possibility of making calls at a reduced price or even free. The capacitance of the capacitor changes in accordance with a displacement of the movable electrode so that an outer circuit detects the acceleration as a capacitance change. The controls for some or all of the RFanalog circuitry may be provided via the serial bus. This makes it possible to detect the leakage both in the inlet valve and the outlet valve at the same time.