Side-by-side
Senstar OmniTrax vs GS-21 Underground Sensor
Spec comparison for two products on Aviation Souk. Both compete in perimeter-security.
perimeter-security
Senstar OmniTrax
by Senstar Technologies
Covert buried coaxial-cable intrusion detection with +/-1 m localisation over 800 m per processor
perimeter-security
GS-21 Underground Sensor
by vortex-systems
Buried UGS with external seismic line-string support for extended pedestrian detection along a perimeter
| Cost of ownership | Senstar OmniTrax | GS-21 Underground Sensor |
|---|---|---|
| Price tier | — | — |
| Lead time (weeks) | ?–? | ?–? |
| Delivery | — | — |
| Install | — | — |
| GCC airports deployed | 0 | 0 |
| Certifications | 4 | 0 |
Specs
Technical specifications.
| Spec | Senstar OmniTrax | GS-21 Underground Sensor |
|---|---|---|
| Sensor type | Buried ported ('leaky') coaxial cable RF sensor, volumetric, covert | — |
| Detection range per processor | up to 800 m | — |
| Location accuracy | +/-1 m | — |
| Detection field size (typical) | 1 m high x 3 m wide, terrain-following volumetric field | — |
| Detection zones | up to 50 software-defined zones per processor | — |
| Probability of detection | >99% (95% confidence) for upright 35 kg intruder moving 5 cm/s to 8 m/s | — |
| Small-object rejection | objects under 10 kg rejected, 95% statistical confidence | — |
| Sensitivity leveling | Per-meter precision leveling via UCM walk-test calibration; graded cable design for uniform sensitivity | — |
| Burial depth | 23 cm in soil; 6 cm slot depth in concrete; direct-buried in most soils, asphalt or concrete | — |
| Cable spacing | 10 cm minimum to 2 m maximum | — |
| Sensor cable options | OC2: separate Tx/Rx, 300 m or 400 m lengths, 12.07 mm jacket; SC2: separate Tx/Rx, 50 m increments to 200 m, 8.0 mm jacket, single-trench narrow spacing | — |
| Lead-in cable | 20 m (OC2), contiguous graded design | — |
| Environmental immunity | Unaffected by vegetation; insensitive to wind, rain, snow, hail, sandstorms, fog, extreme temperatures, seismic vibration, acoustics, magnetic effects, blowing debris | — |
| Operating temperature | -40 to +70 deg C | — |
| Humidity | 95% non-condensing | — |
| Input power | 12 to 48 VDC, less than 9 W; up to 5 processors may share one power supply | — |
| Backup battery | Optional internal 5 Ah | — |
| Power/data over sensor cable | Yes, bidirectional with full redundancy after a cable cut | — |
| Lightning protection | Tranzorb and non-radioactive gas discharge devices on all I/O ports; optional lightning protection kit (A4KT1000) | — |
| Enclosure | Painted aluminum CSA/UL Type 4X with tamper switch; optional IP33 telecom-style enclosure 98.4 x 42.5 x 27.3 cm for above-ground field mounting | — |
| Processor dimensions / weight | 40 x 23.5 x 16.5 cm / 4.9 kg (without optional battery) | — |
| On-board I/O | 4 Form C relay outputs (1.0 A at 30 VDC, activation programmable 0.125-10 s), 2 self-test/dry-contact inputs with programmable supervision | — |
| Optional I/O cards | 8-relay output card or 8-input universal card (one per processor, in addition to comms card) | — |
| Communications | EIA-422, single-mode fiber (up to 10 km, 1310 nm ST), multi-mode fiber (up to 2.2 km, 820 nm ST), or over the sensor cables; dual-end polling for redundant data paths; internal alarm queuing on network loss | — |
| Sensor networking | Silver Network compatible with FlexZone, Senstar LM100, UltraWave, FP400 and XField sensors | — |
| Configuration | Windows-based Universal Configuration Module (UCM) via USB or remotely over network, with real-time plot mode | — |
| Supervision / self-test | Sensor cable monitored for opens, shorts and grounding; enclosure tamper switch; critical processor parameter monitoring | — |
| Integration | Network Manager to Senstar Symphony VMS, StarNet 2 SMS or third-party SMS/VMS/PSIM via free SDK (API docs, simulator, sample code); customizable ASCII output | — |
| Sensing modalities | — | External seismic line strings (pedestrian) + internal magnetic sensor (vehicle presence and travel direction) |
| External sensor inputs | — | PIR (pedestrian/vehicle presence + travel direction) and contact-closure |
| Radio | — | Built-in 5 W VHF, strong foliage penetration |
| Radio range | — | Up to 35 miles line-of-sight |
| Battery life | — | 1+ year |
| Output | — | Mechanical relay to trigger external devices (cameras, lights, sirens) |
| Security | — | Tamper switch |
| Timing | — | Real-time clock; programmable self-test messages and scheduled access windows |
| Compatibility | — | Legacy Vortex and Monitron systems |
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