FUJI & CO.(Piezo Science)
PIR Motion Detector Model NY920A
The Model NY920A is designed to detect motion, mainly that of a man, in any battery operated device. Therefore, the size is comparatively small, and the current consumption is almost at a level of industrial use. The detection method resists the influence of wind or air flow so there are few false triggers. The detector is very cost competitive.
1. The pyroelectric sensor element incorporated in the PCB is really heat sensitive. Therefore, operation will not be stable for some time after heat is added to the PCB such as when leads are soldered to the terminals.
2. Despite the foreword, the use of the detector in a uncased state may cause undesirable false triggering from air motion. The detector should be in a case for stable operation.
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