Side-by-side
Surveyor Vehicle Identification Sensor vs GS-21 Underground Sensor
Spec comparison for two products on Aviation Souk. Both compete in perimeter-security.
perimeter-security
Surveyor Vehicle Identification Sensor
by exensor
Seismic/acoustic/magnetic fusion sensor that classifies and identifies vehicles by type against pre-recorded signatures.
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 | Surveyor Vehicle Identification Sensor | GS-21 Underground Sensor |
|---|---|---|
| Price tier | — | — |
| Lead time (weeks) | ?–? | ?–? |
| Delivery | — | — |
| Install | — | — |
| GCC airports deployed | 0 | 0 |
| Certifications | 2 | 0 |
Specs
Technical specifications.
| Spec | Surveyor Vehicle Identification Sensor | GS-21 Underground Sensor |
|---|---|---|
| Sensing modality | Fusion of seismic, acoustic and magnetic sensor data | — |
| Capability | Classification (light/medium/heavy, tracked/wheeled) and identification against pre-recorded signatures; reports type, speed, direction | — |
| Main unit dimensions | 75 x 120 x 55 mm | — |
| Probe dimensions | 137 x 47 x 38 mm | — |
| Main unit weight | 0.9 kg | — |
| Probe weight | 0.4 kg | — |
| External probe and cable weight | 1.4 kg | — |
| Battery endurance | 5 days rechargeable; external battery connectable | — |
| Radio | Flexnet mesh network | Built-in 5 W VHF, strong foliage penetration |
| Positioning / anti-tamper | GPS self-location; anti-tampering and lift protection | — |
| Operating temperature | -32 to +71 degC | — |
| Environmental standard | MIL-STD-810 | — |
| EMC standard | MIL-STD-461 | — |
| 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 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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