| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a portable gas concentration detector which can notify a user of a gas concentration even only by alarm sound, and a gas concentration notification method of the portable gas concentration detector. <P>SOLUTION: A portable gas concentration detector 1 includes a gas sensor 10 which outputs a signal corresponding to the concentration of carbon monoxide, and a control part 20 which controls the output of alarm sound on the basis of the signal output from the gas sensor 10. The control part 20 determines the content of alarm sound, an alarm interval, and an alarm frequency corresponding to the detection concentration indicated by the signal output from the gas sensor 10, and outputs the alarm sound with the determined content of alarm sound and at the determined alarm interval and alarm frequency. <P>COPYRIGHT: (C)2013,JPO&INPIT |
