A memory system includes a memory device. A test receiver measures signal parameters from the antennas at measurement locations as the antenna radiation directions are varied. EMI shielding structure is configured to define a conductive enclosure about the high voltage region and the low voltage region and a conductive EMI barrier between the high voltage region and the low voltage region. The position of the restraint frame is adjustable to accommodate a dog of any size such that the excrement will drop in or close to the drain opening of the toilet. The lever is configured to pivot in a height direction of the connector housing, press the slide bar further into the slide holes and fix a counter connector to the connector housing, when being turned. Fluorescence which is emitted from each of the one or more biological specimens is detected when a predetermined time elapses since the biological specimen is irradiated with the excitation light.