The sensing layer
Sensing without an app, wherever people move.
Keen Eye creates new data from the Bluetooth signals phones and wearables already emit: movement, density and dwell time, fed straight into Illum. Nothing to install on the devices it observes.
01 / What it is
Listens, passively.
It records each Bluetooth advertisement it hears: signal strength, name, and manufacturer or service data, placed on a floor or zone.
02 / Detect
Devices, detected.
Each observation is a structured record with signal strength, first and last seen, and its source.
03 / By zone
Structured by zone.
Records roll up by zone, so you see how each space is used. Counts are devices observed, not unique people.
04 / Flow and dwell
Flow and dwell.
Where devices move, and where they linger.
05 / Ahead
Ahead of the crowd.
At a station, the count reaches the next stop before the train does. In an arena, it reaches the gate before the surge. In a store, it reaches the aisle before the queue.
Where it works
Wherever people gather.
The same passive signals, read the same way, in every kind of space.
Transit
Counts by car and platform, handed to the next station.
Live venues
Density and flow by gate and section, as a crowd builds.
Retail
Dwell and flow by aisle and zone, store by store.
Campuses and buildings
Movement and occupancy by floor and zone.
Counts are devices observed, not unique people.
How it works
Passing signals become planning data.
What it reads
Signal strength, type and timing, structured into a record for each zone.
What you get
How full each zone is, how long devices stay, and where they move next.
Hardware
A fixed unit or the phone app.
A fixed unit with a Bluetooth adapter, or the phone app, collects. A Wi-Fi lane reads device lists on networks you authorize. Both feed one authorized, timed record into Illum.
01
Effortless
Works from the signals devices already send, so nothing changes for the people in the space.
02
Zoned
Structured by zone, floor and time.
03
Edge-first
Processing on the unit, so only structured data travels.
Designed to feed Illum.
Keen Eye creates the data. Illum places it on the right floor and geofence, and puts it to work.
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© 2026 Tezzeract, Inc. All rights reserved. ILLUM and KEEN EYE are trademarks of Tezzeract, Inc. Near real time means within 500 milliseconds.


