Side-by-side
Senstar FiberPatrol FP1150 vs GS-21 Underground Sensor
Spec comparison for two products on Aviation Souk. Both compete in perimeter-security.

perimeter-security
Senstar FiberPatrol FP1150
by Senstar Technologies
Fibre-optic perimeter intrusion detection for long airport fencelines — up to 80 km per processor, nothing powered at the fence.

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 FiberPatrol FP1150 | GS-21 Underground Sensor |
|---|---|---|
| Price tier | — | — |
| Lead time (weeks) | ?–? | ?–? |
| Delivery | — | — |
| Install | — | — |
| GCC airports deployed | 0 | 0 |
| Certifications | 0 | 0 |
Specs
Technical specifications.
| Spec | Senstar FiberPatrol FP1150 | GS-21 Underground Sensor |
|---|---|---|
| Sensor type | Ranging fiber-optic intrusion detection - fence-mounted, buried, or wall-top deployment; also protects buried pipelines and data conduits (TPI) | — |
| Max perimeter per processor | Up to 80 km | — |
| Localisation accuracy | +/-4 m | — |
| Detection principle | Laser pulse reflectometry in single-mode fiber: measures minute light reflections along the cable; fence vibration changes returned light at that point | — |
| Multiple simultaneous intrusions | Accurately detected and located | — |
| Alarm reporting | By zone number, cable distance and/or GPS coordinates; flexible software-based zoning | — |
| Cut immunity | Cable cut immediately reported with exact location; detection continues up to the cut point; full cut-immune configuration keeps detection on the entire perimeter after a cut | — |
| Redundancy | Redundant configuration with automatic failover transparent to the alarm system; redundant hot-swappable power supplies and SSDs per sensor unit | — |
| Sensor medium | Single-mode fiber within telecommunications-grade cable; 25+ year nominal service life; unused fibers reusable for networking/other devices; LSZH, fire-retardant and fire-resistant cable ratings possible | — |
| Field power | No powered or conductive items required in the field; immune to EMI and lightning; intrinsically safe in explosive atmospheres | — |
| Nuisance alarm mitigation | EDAPT adaptive processing for sustained environmental noise plus environmental disaggregation via precise ranging (randomly distributed in-zone disturbances do not alarm) | — |
| Fence compatibility | Chain-link, welded mesh and expanded metal mesh; single cable pass protects fences up to 4.3 m high; palisade depending on fence characteristics; wall-top mounting on one or both corners of walls | — |
| Buried mode | Detects characteristic vibrations of walking, running or crawling intruders above a buried sensor cable | — |
| Gate protection | Cable installable on swinging gates as an independent zone; sliding gates via Wireless Gate Sensor or UltraWave | — |
| Processor format | Integrated 4U sensor unit with all detection and gateway software built in - no separate integration server; built-in alarm display application; Windows OS with familiar GUI for local and remote management | — |
| Communications / I/O | Built-in Ethernet; supports Senstar UltraLink family of I/O cards; output-relay integrations supported | — |
| Integration | Network Manager to Senstar Symphony Common Operating Platform and third-party VMS/security/PSIM systems; free SDK | — |
| Certification | UK NPSA certified against version 6.0 of the NPSA Barrier Mounted PIDS Standard | — |
| 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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