Side-by-side
Flexnet Gateway V Video Gateway vs GS-21 Underground Sensor
Spec comparison for two products on Aviation Souk. Both compete in perimeter-security.

perimeter-security
Flexnet Gateway V Video Gateway
by exensor
Video gateway integrating external PTZ cameras and radars into the Flexnet UGS network with on-board video processing.

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 | Flexnet Gateway V Video Gateway | GS-21 Underground Sensor |
|---|---|---|
| Price tier | — | — |
| Lead time (weeks) | ?–? | ?–? |
| Delivery | — | — |
| Install | — | — |
| GCC airports deployed | 0 | 0 |
| Certifications | 2 | 0 |
Specs
Technical specifications.
| Spec | Flexnet Gateway V Video Gateway | GS-21 Underground Sensor |
|---|---|---|
| Function | Connects external network cameras (PTZ) and radars/third-party sensors to Flexnet | — |
| Processing | Storage module + dedicated processor for video compression and analysis | — |
| Connected devices | Two units per Gateway V (e.g. radar + camera) | — |
| Slew-to-cue | Triggered by a sensor alarm, activates a third-party PTZ to image the area of interest | — |
| Interfaces | Secondary Ethernet port, serial input, USB backbone interface, external 3G/4G modem option | — |
| Short-range radio | 1,000 m to sensors, 0.5 W output | — |
| Long-range radio | 10 km between gateways, 10 W output | — |
| Video backhaul | Streaming video over 3G/4G, Satcom or backbone IP radio via external modem; local storage and later retrieval in network-denied or covert operations | — |
| Power | No internal battery; external battery, solar panel or fuel cell | — |
| Encryption | AES-256; data storage and silent-mode capacity | — |
| Dimensions | 115 x 120 x 170 mm | — |
| Weight | 2.5 kg | — |
| Positioning / anti-tamper | GPS self-localisation; anti-tampering | — |
| 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 | — | 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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