| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To solve problems that when gas is shut off with a microcomputer, a user of gas can not be easily told when and why gas is shut off. <P>SOLUTION: The state information of the microcomputer 1 is sent to a hot water supply device 3 in the form of radio data, and the hot water supply device 3 received the data informs to the user of gas from an informing part 5 of a connected remote control 4. <P>COPYRIGHT: (C)2003,JPO</p> |
