To sense a vibration a higher sensitivity.

A metered-dose corresponding vibration alarm is constituted of an electrical apparatus supported by mainframe casings 2, 5, an insulator (a suspension belt) 12 connected mechanically to the mainframe casings 2, 5, a vibrator 11 embedded in the insulator 12 and an electric power line 13 used to electrically connect the vibrator 11 to the electrical apparatus. The electrical apparatus is provided with a measurement device used for measuring the dose, a dose-corresponding electrical device 3 used to output an electrical signal 8, on the basis of the dose measured by the measuring device and a vibration electric-power corresponding device 6 used to output electric power 9, corresponding to the electrical signal 8. The vibrator 11 is vibrated by the electric power 9 received via the electric power line 13. Since the insulator 12 is flexible, a vibration part propagated to the mainframe casing 5 from among a vibration to be output by the vibrator 11 is small, and the vibration is sensed effectively by a human body. As a result, power consumption required for the vibration can be reduced.