TEVITY·GroupAI ServicesVoice AISense
Full Platform

Everything WiFi sensing can do

From a single passive node to a building-wide operations center — Tevity Sense covers presence, motion, occupancy, analytics, and threats in one privacy-first platform.

Presence & Motion

The proven core of WiFi sensing.

  • Room-level presence: occupied or empty, in real time
  • Motion detection with motion-level intensity
  • Through-wall sensing — no line of sight needed
  • Works in the dark and in obscured spaces
  • Multi-room coverage from a small sensor mesh

Corporate Overview

A live security operations center for your whole building.

  • Multi-floor live floor plan with real-time sensor status
  • Animated pulse rings the instant motion is detected
  • Signal-path visualisation between access points and nodes
  • Zone-based occupancy overlay
  • Alert feed with severity levels and timestamps
  • System health: uptime, sensor count, and alert rate

Zone Analytics

Understand how every space in your building is used.

  • Per-zone occupancy counting over time
  • Dwell-time analysis per zone
  • Traffic-flow patterns between zones
  • Peak occupancy period detection
  • Zone capacity warnings

Threat Detection

Catch what cameras in the dark cannot.

  • Intrusion detection with severity scoring
  • Loitering detection in unusual zones
  • After-hours presence alerts
  • Restricted-zone presence alerts
  • Configurable per-zone sensitivity

CSI Signal Intelligence

The raw signal layer that powers everything above.

  • Real-time CSI waterfall (52 subcarriers × time)
  • NBVI subcarrier selection highlighting the best 12
  • Signal-quality metrics per sensor node
  • Multi-path propagation visualisation
  • Interference detection and mitigation status

System Administration

Everything you need to run sensing at scale.

  • Sensor-node management: health, firmware, RSSI, uptime
  • Drag-and-drop floor-plan editor and sensor placement
  • Zone definition tooling
  • Configurable alert rules and thresholds
  • API key management for programmatic access

What you need

A simple, low-cost stack

No cameras, no cabling, no rip-and-replace. Most of what you need, you already own.

1

Your existing WiFi

Your current router and access points — no firmware changes, no rewiring, no modification needed.

2

ESP32-C6 sensor nodes

Low-cost CSI nodes at roughly $10–15 per room. We supply and configure them for your space.

3

A processing hub

An on-site hub that fuses the signal from every node into presence, motion, and occupancy. Included in your deployment.

4

Tevity Sense dashboard

The Tevity Sense cloud dashboard for live floor plans, zone analytics, and threat alerts.

The science

Why WiFi can sense presence and motion

Every body in a space absorbs, reflects, and scatters the WiFi signals around it. Those changes are captured as Channel State Information — a fine-grained, per-subcarrier picture of the radio environment.

When someone moves, the signal paths shift frame to frame. That variance is what reveals presence and motion — reliably, through walls, and without any camera or microphone.

  • 1Bodies absorb and reflect 2.4 / 5 GHz WiFi signals
  • 2Movement changes signal paths frame-to-frame (CSI variance)
  • 3Walls and furniture are transparent to WiFi, not to cameras
  • 4Multiple nodes localise motion to specific zones
  • 5More transmitting devices means more spatial diversity and accuracy
  • 6No images, no audio, no identities — just signal statistics

See the full platform in action

Explore the live SOC demo, or talk to our team about a deployment for your building.