| 摘要 |
PROBLEM TO BE SOLVED: To easily perform treatment in disposal. SOLUTION: An electronic unit 6 in airtight structure is placed on a water meter metering section that is not shown for use. The rotation of an impeller that is not shown is detected by a magnetic sensor 7 and is operated and integrated by a control section 9 for displaying the integral value at a liquid crystal display section 10. Power is fed from a fuel battery 16. Vapor generated from the battery is absorbed by a silica gel 17. A radio transmission/reception section 13 and an antenna 14 transmit and receive electric waves when reading a meter automatically. A glass window is indicated by 6d. |
