The four-layer stack — conditioning, sensing, prediction, remediation — is the constant. The chassis changes to match where the ethylene risk lives and what role the node plays in the fleet.
E-Aegis — the 1U host platform. Carries the full stack. Trained against a reference instrument; deployed inside reefer containers, cool rooms and distribution centres.
E-MCP — distributed release node. Hockey-puck form factor. Runs a distilled student of E-Sentinel. Carries no ethylene sensor — infers climacteric state from temperature, humidity, time, BLE neighbours and adsorbent loading state.
E-Nose Label — sticker-class pallet sensor. Carries the leanest student model. One per pallet, single-use, compostable.
One firmware family. One cloud platform. One model architecture. The chemistry and the chassis swap.