Buildings · Strong theory
FitOut Sentinel: Tenant Alteration & Concealed-Metal Watchdog
Notices when a tenant builds a wall, removes one, or hides something metal.
The physics is solid; our own validation is scheduled.
How it works
The walls and metal objects in a space set the fixed pattern of how WiFi waves bounce around it. A new partition adds echoes, a removed one deletes them, and hidden metal reflects strongly even behind finished surfaces. The system compares today's pattern with the approved baseline and flags what changed.
In the physics: Walls and metal objects define the static multipath skeleton: a new partition creates new reflection paths (new CIR taps at predictable delays), a removed one deletes taps, and metal is a near-perfect scatterer that dominates the sigma map in field reconstruction. These are step changes in geometry, orthogonal to human motion.
See it work
This is real pipeline output for Buildings, replayed. The exact reading depends on your room.
Go deeper
How the field becomes an answer
How we prove it
ESP32-wall dataset for through-wall tap sensitivity; own-hardware: erect/remove a temporary stud+drywall partition and place a 1m metal cabinet in a test room, verify tap-level and NeRF-map detection and localization.
Who it is for
For the landlord / asset manager: 'Lease-compliance radar — know within a day when a tenant builds, demolishes, or hides something they didn't file a permit for.'
runtime Runs today in LatentField 2.0 as intrusion
The matching solution
Complete first-room estimateFloor Utilization Node3 nodes · ~$130 parts · 90 min Request kit, subscribe, or set up →Compatible DIY hardware options
120 min · advanced
240 min · installer