Hardware
One sensor, honestly specified.
Built in-house since 2017. The size and shape of a WiFi access point; the behaviour of a microphone, not a loudspeaker — it only listens.
Radio
Passive, listen-only — the sensor never transmits. It receives the probe frames phones broadcast while looking for WiFi, within a detection range of roughly 10 metres.
Location capability
One sensor: presence near it. Three or more sensors seeing the same device simultaneously: approximate location by triangulation. Deployment plans state which zones get triangulation meshes and which get presence-only coverage — that choice decides which analytics each zone can produce.
Power & connectivity
A 220V outlet is the whole venue requirement. Internal battery rides out gaps; 4G connectivity is standard (local network optional); encrypted local storage keeps measuring through connectivity loss. Power downtime windows are logged and excluded from analysis, not papered over.
Placement rules
- Mounted on existing structural or equipment elements — no freestanding poles
- Standard height 1.5–2.0 m
- Positions fixed once deployed: triangulation accuracy depends on sensors not moving
- Every deployment ships with an annotated floor plan and a statement of work your own staff or agency can execute
Where it runs
Short events, roadshows, long events and permanent installations — exhibition halls, museums, conference centres, shopping malls, open-air festivals and circuits, and outdoor winter venues. Clients hold the hardware and activate it when they measure; sensors are reusable across deployments.
On the sensor
Anonymisation happens here: device identifiers are hashed with a random salt on the sensor itself, in 1–3 seconds, and raw identifiers are never stored. The sensor is where the privacy promise is enforced, not a policy document.