Dual-band WiFi differential attenuation detects moisture buildup: water absorbs 5 GHz ~2x more than 2.4 GHz. Combined with CSI amplitude drift and the VTT Mold Growth Model (Finnish Technical Research Centre), the system predicts mold risk class and estimates days to visible growth. No additional hardware needed.
JSON: GET /api/v1/mold/health?format=json
· Demo: /api/v1/mold/demo