Our long-range EO/IR PTZ camera against FLIR Ranger HDC MR, Silent Sentinel Aeron and Axis Q8752-E Mk II: published DRI against a positioner you own.
These are all border and perimeter EO/IR positioners. Two of the competitors reach further on thermal because they use larger or cooled optics, and all of them state ranges differently. The buyer question is which numbers are published against defined targets, and who holds the export desk.
This is a fielded perimeter camera, not a lab build. A 30x full-HD day channel on a STARVIS 2 sensor pairs with an uncooled 640x512 LWIR thermal channel on a 50 mm fixed lens, detecting a person at 10 km by day and 2.4 km on thermal, and a vehicle at 20 km by day and 5 km on thermal. The IP66 positioner holds 360-degree continuous pan and 0.1-degree preset accuracy, and streams H.264/H.265 over Ethernet.
Side by side
| Attribute | Represented by UnstratLong-range EO/IR PTZ camera | Teledyne FLIRRanger HDC MR high-definition mid-range surveillance system1United States | Silent Sentinel (Pelco / Motorola Solutions)Aeron dual-vision PTZ2United Kingdom | Axis CommunicationsAXIS Q8752-E Mk II bispectral PTZ camera3Sweden |
|---|---|---|---|---|
| Day camera123 | 1/2.8-inch STARVIS 2 CMOS, 1920x1080, 30x optical and 12x digital zoom, 4.3-129 mm | 1920x1080 HD colour TV camera, 4.3-129 mm, F1.6-F4.7 | HD visible camera with 30x zoom | Visible channel with Lightfinder 2.0 and Forensic WDR; 360 degree infinite pan |
| Thermal detector123The Ranger's cooled 1280x720 InSb core is a higher-end detector than our uncooled 640x512, which is why it reaches further on thermal. It is also a heavier, more expensive and export-controlled system. | Uncooled LWIR 640x512, 8-14 µm, 12 µm pitch, NETD better than 35 mK | Cooled InSb 1280x720 (HDC 350/550) or uncooled microbolometer 1024x576 (HDC UC) | Thermal channel, fixed or zoom lens, resolution not published on the fact sheet read | Bispectral thermal channel with electronic image stabilisation; resolution not published on the datasheet read |
| Person detection, thermal123 | 2.4 km | Not published as a single person figure on the datasheet read; range varies by lens | Up to 4.6 km (lens dependent) | Not published as a person detection figure on the datasheet read |
| Vehicle detection, thermal123Aeron's longer thermal ranges reflect longer or larger thermal optics chosen per order; the fact sheet ties them to specific lenses. Our figures are for the 50 mm fixed-lens thermal channel as catalogued. | 5 km | Not published as a single vehicle figure on the datasheet read; range varies by lens | Up to 14.3 km (lens dependent) | Not published as a vehicle detection figure on the datasheet read |
| Person / vehicle detection, day123 | Person 10 km, vehicle 20 km | Not published as a day person/vehicle range table on the datasheet read | Detection figures on the fact sheet are stated for the thermal channel | Not published as a day person/vehicle range table on the datasheet read |
| Pan and tilt123 | 360 degree continuous pan, -90 to +40 degree tilt, preset accuracy ±0.1 degree, pan to 100 degrees per second | Fast and accurate pan-tilt stated; figures not published on the datasheet read | 360 degree continuous rotation, pan/tilt to 160 degrees per second, 0.01 degree positioning | 360 degree infinite pan with electronic image stabilisation |
| Environmental rating and range123 | IP66, 24 VDC ±10%, 50 W, about 12 kg | Not published as an IP rating on the datasheet read | IP67, -30 to +65 degrees C | Outdoor-rated; figure not published on the datasheet read |
| Bad-weather processing123 | Not published as a named fog or turbulence filter | Fog filter and Merlin ASX turbulence filter, cyber-scan at each software release | Dual thermal and visible coverage for harsh perimeter sites | Lightfinder 2.0 and Forensic WDR for low light and high contrast |
| Streaming and integration123 | H.264/H.265 RTSP over Ethernet into existing video management systems | Designed for slew-to-cue integration with radars for counter-UAS | Nex OS payload operations, standard video management integration | Open analytics platform, Axis and third-party analytics, fibre-optic option |
| Origin and export position123 | Independent, non-aligned origin, supplied and supported by one accountable team | United States (export-controlled defence product) | United Kingdom | Sweden |
Competitor values are quoted from the vendor documents listed under Sources, as published on the date shown. Configurations vary, so treat every row as a starting point for the evaluation rather than a like-for-like test result.
What the table means
The Ranger and the Aeron reach further, and they cost that reach.
FLIR's Ranger HDC MR uses a cooled 1280x720 InSb detector on the 350 and 550 variants, and Silent Sentinel's Aeron reaches 4.6 km on a person and 14.3 km on a vehicle with longer thermal lenses. Both beat our 2.4 km person and 5 km vehicle on the thermal channel, because both fit higher-end or larger thermal optics. That is a real advantage where the perimeter is very deep. It also comes with a heavier, dearer system and, in the Ranger's case, US export control. Our camera is honest about being an uncooled 640x512 on a 50 mm fixed lens; where the perimeter fits a 2.4 km thermal band, it does the job at a fraction of the weight and licensing burden.
Published day ranges and preset repeatability are where ours is specific.
We publish a 10 km person and 20 km vehicle detection on the day channel and a ±0.1 degree preset accuracy, so a sector scan returns to the same bearing year after year. The competitor datasheets read here state their ranges differently: the Aeron ties its figures to the thermal channel and specific lenses, and the Ranger and the Axis do not publish a day person/vehicle table at all. That does not make ours better everywhere, but it makes ours checkable. Ask each vendor for a DRI table against a defined target, then verify it in your own trial.
Export terms sit under all of this.
The Ranger HDC MR is a US defence product and carries the export regime that goes with it. The Aeron and the Axis carry UK and Swedish regimes respectively. For a border or force-protection buyer, the resupply and end-use terms of a fixed perimeter sensor matter for a decade after install. Our camera comes from an independent, non-aligned supplier, so the positioner and its spares stay inside the operator's jurisdiction rather than on a foreign export calendar.
Questions buyers ask
What is a good alternative to the FLIR Ranger HDC MR or Silent Sentinel Aeron for border surveillance?
All three are credible. The Ranger HDC MR uses a cooled 1280x720 InSb thermal core with fog and turbulence filters; the Aeron reaches 4.6 km on a person and 14.3 km on a vehicle with longer thermal lenses; the Axis Q8752-E Mk II is a bispectral PTZ with a strong analytics platform. Ours pairs a 30x full-HD day channel with an uncooled 640x512 LWIR thermal channel, detecting a person at 10 km by day and 2.4 km on thermal, on an IP66 positioner with ±0.1 degree preset accuracy, from a non-aligned supplier. If your perimeter fits a 2.4 km thermal band and you want a lighter, non-export-controlled system with published day ranges, that is the reason to shortlist it.
Why does the Ranger or Aeron detect further on thermal than yours?
Because of the optics and the detector. The Ranger's 350 and 550 variants use a cooled 1280x720 InSb core, and the Aeron uses longer thermal lenses to reach 4.6 km on a person. Both are higher-end thermal fits than our uncooled 640x512 on a 50 mm fixed lens, so they reach further and cost more, weigh more and, for the Ranger, carry US export control. The right question is not who reaches furthest but whether your perimeter needs more than a 2.4 km thermal detection band; if it does not, the extra optics are cost you do not need.
Do the competitors publish their detection ranges against defined targets?
Only partly. The Aeron publishes person and vehicle figures tied to specific thermal lenses; the Ranger and the Axis datasheets read here do not publish a full person/vehicle DRI table. We publish a day person figure of 10 km, a day vehicle figure of 20 km, and thermal figures of 2.4 km and 5 km. Because vendors state ranges against different target sizes and conditions, treat every published number as a trial-verifiable claim and run the camera against your own targets before you commit.
How repeatable is the camera when slewing to a preset or an alarm cue?
Ours holds a ±0.1 degree preset accuracy, so a saved sector or an alarm slew-to-cue returns to the same bearing rather than drifting over months of use. The Aeron publishes a tighter 0.01 degree positioning accuracy and 160 degrees per second pan/tilt; the Ranger states a fast, accurate pan-tilt without a published figure, and the Axis offers 360 degree infinite pan. If your operation depends on repeatable sector scans or radar slew-to-cue, ask each vendor for the positioning accuracy and confirm it holds after a season outdoors.
Is this a fielded camera or a prototype?
Fielded. It is an IP66 EO/IR PTZ camera in service, streaming H.264/H.265 over Ethernet, with the day and thermal detection ranges, the ±0.1 degree preset accuracy and the 360 degree continuous pan quoted here as the delivered specification.
Why does supplier nationality matter for a fixed perimeter camera?
Because a border or force-protection camera is installed for a decade, and its resupply, firmware and end-use terms arrive with the export licence. The Ranger HDC MR is a US defence product with the regime that implies; the Aeron and the Axis carry UK and Swedish regimes. An independent, non-aligned supplier keeps the positioner, its spares and its firmware inside your jurisdiction rather than on a foreign export calendar, which is the difference between a sensor you own and one you rent from another state's schedule.
Sources
- 1. Teledyne FLIR, Ranger HDC MR high-definition mid-range surveillance system (datasheet)Retrieved: 2026-08-15 · Read from the vendor datasheet: cooled InSb 1280x720 (HDC 350/550) or uncooled 1024x576 (HDC UC) thermal, 1920x1080 HD colour TV camera 4.3-129 mm F1.6-F4.7, fog filter and Merlin ASX turbulence filter, slew-to-cue for counter-UAS.
- 2. Silent Sentinel (Pelco / Motorola Solutions), Silent Sentinel Aeron fact sheet (December 2025)Retrieved: 2026-08-15 · Read from the vendor fact sheet: dual thermal and visible sensors, person detection up to 4.6 km and vehicle up to 14.3 km (lens dependent), 360 degree continuous rotation, pan/tilt to 160 degrees per second, 0.01 degree positioning, 30x zoom, IP67, -30 to +65 degrees C.
- 3. Axis Communications, AXIS Q8752-E Mk II bispectral PTZ camera (datasheet)Retrieved: 2026-08-15 · Read from the vendor datasheet: bispectral thermal and visible camera, 360 degree infinite pan, electronic image stabilisation on both channels, Lightfinder 2.0 and Forensic WDR, open analytics platform, fibre-optic option.