IMSI-SENSE
Every Corner Aware.
A grid of compact, passive RF detection nodes that blankets a facility with cellular awareness. Each PoE node detects device presence across 2G–5G and feeds a central engine, scaling to 128 nodes for building-wide geolocation without a single high-power unit.
Detection as Infrastructure
Coverage comes from density, not from one powerful receiver in a rack. IMSI-SENSE spreads small passive nodes across ceilings and walls like access points, each reporting device presence and signal levels so the central engine can see — and locate — everything, everywhere, all the time.
Passive Detection Nodes
Each node passively detects 2G / 3G / 4G / 5G device activity across 700 MHz–6 GHz at −100 dBm sensitivity, reporting presence and RSSI without transmitting.
Grid Geolocation
With overlapping node coverage, the central engine triangulates devices to 3–8 m building-wide, improving as node density rises — no external antennas or alignment per node.
PoE-Simple Scale
Up to 128 nodes on one engine, each powered and networked over a single PoE cable at < 12 W, mounted AP-style in minutes with no RF cabling.
Feeds the Intelligence Stack
Node data flows straight into IMSI-TRACK PRO for identity capture and IMSI-TRACK ML for analytics, making the grid the sensory layer of the full platform.
The Result
- Passive detection · 700 MHz–6 GHz · −100 dBm · 2G–5G
- Grid geolocation 3–8 m building-wide, density-dependent
- Up to 128 PoE nodes per engine · < 12 W · < 1 kg each
- Direct feed into IMSI-TRACK PRO / ML
Technical Specifications
Detection Node (SI-ISN-N1)
| Function | Passive detection (receive-only) |
| Frequency range | 700 MHz–6 GHz |
| Sensitivity | −100 dBm (±3 dB) |
| Technologies | 2G / 3G / 4G / 5G |
| Measurement rate | 1–10 Hz |
Ordering Information
Part numbers and configuration options
| Part Number | Description | Availability |
|---|---|---|
| SI-ISN-N1 | Passive detection node · indoor · PoE | Standard |
| SI-ISN-ENG | Central detection engine · 1U | Standard |
| SI-ISN-MNT | Universal ceiling / wall mount | Standard |
| SI-ISN-SW-BASE | Grid detection software license | Standard |
| SI-ISN-N1-OUT | Passive detection node · outdoor · IP65 | Optional |
| SI-ISN-SW-GEO | Enhanced triangulation license | Optional |
Implementation Process
Site Survey
- Floor-plan capture
- Coverage overlap plan
- Target-band selection
- Privacy policy
System Design
- Node density and spacing for target precision
- PoE switch sizing
- Engine placement
- PRO/ML integration
Installation
- Ceiling/wall node mounting
- Single-cable PoE runs
- Engine commissioning
Calibration
- Node RSSI calibration
- Triangulation validation
- Precision verification per zone
Training
- Operator and administrator training
- Presence and geolocation views
- Maintenance
Go-Live
- Grid activation
- Live presence and geolocation
- Feed to PRO/ML
Typical deployment timeline: 4-8 weeks depending on facility size and complexity
Frequently Asked Questions
Make Detection Part of the Building
Request a demonstration of building-wide passive detection by node density.
IMSI-TRACK PRO
pair the sensory grid with identity capture and evidence-grade records.