| 摘要 |
PROBLEM TO BE SOLVED: To provide a showcase capable of responding to user's demand by notifying an user of actual allowance to overflowing by notifying a water level for starting notification and a final warning water level by different methods while considering urgency in actual overflowing from a drainage receiver in notifying the discharging of drainage. SOLUTION: In this showcase comprising the drainage receiver, a water level detecting device for detecting the amount of drainage in the drainage receiver, and a notifying means for notifying that the water level reaches higher than a prescribed value, the notifying means provides an actual value of water amount in notification or the approach to drainage amount to start notification, by an optional information medium. COPYRIGHT: (C)2008,JPO&INPIT
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