| 摘要 |
<p>A wireless switch includes an actuator displaced upon receiving an external force, a switch circuit (13) for outputting a switching signal in operative association with motion of the actuator, an oscillator circuit (14, 51 52, 5n, 62) for wirelessly outputting a signal of a prescribed frequency to a remote location, which is spaced apart from the wireless switch, based on an output signal from the switch circuit, and changeover circuit (61) for changing over the oscillation frequency of the oscillator circuit.</p> |
