To flexibly and easily respond to a switching of sensor kinds and exactly measure an object to be measured in analyzing area.

In a sensing member 10, sensor values measured with a plurality of pressure sensors 13 are output from an output connector 15 via a connection code 14. In a control member 20, the sensor values output from the output connector 15 are input in the input connector 23. After specifically processing in a control circuit substrate 25, sensing information concerning the object to be measured with the radio communication circuit substrate 27 is radio-transmitted to an external administrating system. The sensing member 10 and the control member 20 are detachable and by connecting the output connector 15 and the input connector, and fixing the sensing member 10 and the control member 20 with fixing screws 40 and nuts 41, one assembly tile-like sensor 2 is constituted.