| 摘要 |
PROBLEM TO BE SOLVED: To enable easily gaining an understanding of the details of a detection area of a passive infrared sensor.SOLUTION: A passive infrared sensor is enabled to have, inside or outside thereof, a function to be able to perform radio communication with a multifunctional mobile terminal device such as a smart phone and a tablet terminal, and enables a particular multifunctional mobile terminal device to confirm an electric signal waveform and an alarm state from an infrared detection element. |
