An electrode sealing assembly is designed for use with an electrosurgical instrument for sealing tissue and includes first and second jaw members each having an insulative housing and being movable from a first position in spaced relation relative to one another to at least one second position for grasping tissue therebetween. The apparatus changes the positions of the detector rings, performs irradiation with the radiation beam through between the detector rings, and then performs radiation measurement. When the pull rod is disposed at the locking position, the retaining block extends through a hole in the sleeve tube and engages a selected one of holes in the insert tube of the second vehicle body. Accordingly, it is possible to secure an average lifetime of a wireless network system by previously preventing a bottleneck from occurring at a specific node, increase a transmission speed of data by reducing the hop count to the sink node connected to the information collector, and reduce power consumption of a battery. A complementary interengaging mounting structure is provided between the frame of the connector module and the lower phone housing to releasably mount the module in the cavity.