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Presence Sensor with Siren SIGMA-S1001
Brand: Generic / OEM
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Audited BOM: 11 Components
RMA Chain & Defect Intelligence
Root cause causal graph linking factory engineering flaws to verified consumer return reasons.
⚡ Causal Link: Defect to Consumer Return
Low-quality PIR component or poor calibration (ENG-001) leads to detection failure (RMA-001), resulting in negative reviews about range and effectiveness (REV-001, REV-005).
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