Automotive · Frontier
Wet Freight Early Warning — Moisture Ingress in Trailers & Reefers
Warns of water getting into the trailer days before cargo ruins.
Plausible physics, early work — shown honestly as an experiment.
How it works
Water changes the signal far more strongly than any dry cargo or insulation. Moisture creeping in slows and weakens signal paths through one region, a little more each day. No single reading shows it — the slow, one-way drift is the alarm, and drift is what this system is built to see.
In the physics: Water's eps_r ~80 versus dry cargo/insulation ~2-4 means even small moisture accumulation dramatically changes local permittivity, shifting path delays through affected regions and re-weighting reflection amplitudes. The change is spatially localized and monotonic over days — invisible to any instantaneous sensor but ideal for drift statistics.
See it work
This is real pipeline output for Automotive, replayed. The exact reading depends on your room.
Go deeper
How the field becomes an answer
How we prove it
Own-hardware: reefer trailer mock-up with controlled water injection into wall insulation (100ml/day), 30-day ESP32 capture, verify CUSUM detection latency and voxel localization vs moisture-meter ground truth.
Who it is for
Cargo-damage and reefer-insulation failure insurance-grade early warning — sold to cold-chain fleet owners and marine cargo insurers who eat wet-freight claims.
The matching solution
Complete first-room estimateCabin Presence Node1 nodes · ~$40 parts · 45 min Request kit, subscribe, or set up →Compatible DIY hardware options
45 min · intermediate