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In the security and surveillance industry, specifically in older product catalogs (like ADI), 1581X refers to a specialized sensor.
: A long-range Passive Infrared (PIR) Motion Sensor . Key Specs :
: Research has identified GNG 1581x HC 5 as a high-performing variant, recording seed yields as high as 3104 kg/ha .
: Older financial archives (e.g., Financial Times , 1993) list "1581X" as a reference number in market data or stock transaction logs.
: Features pointable mirrored optics for precise field-of-view adjustment. Installation : Designed for high mounting, up to 25 feet . 📟 Historical and Other References