| 摘要 |
The system checking the consumption of gas, water, and electricity includes an autometer having RAM in which limit value is stored, a ROM control circuit storing control program for the system, a displayer displaying the information provided from the autometer, a supervisor transmitting the informations through communication line, a setting circuit (33) setting the limit consumtion value per hour of gas, water, and electricity, a register storing the consumed value, a comparator (34) comparing the limit value and consumed value, and an alarm alarming when the limit time exceeds over certain time.
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