High-Definition Dual-Spectrum Electro-Optical Pan-Tilt Unit
Current model: SSK/NW-HTK2500
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Product Overview
The Sosk Dual-Spectrum HD Electro-Optical Pan-Tilt Unit (Single‑IP Smart Edition) is an intelligent, multi‑scenario solution designed for forest fire prevention, fisheries management, and high‑altitude surveillance. It features built-in advanced algorithms for vessel detection and tracking, fire‑point identification, and integrated response coordination. Its maximum detection ranges are: 8.3 km for fires (2 m × 2 m), 9.5 km for vehicles (2.3 m × 2.3 m), 3.1 km for personnel (0.75 m × 1.8 m), and 16.6 km for vessels (10 m × 4 m).
Thermal imaging cameras ensure the equipment operates reliably around the clock, day and night.
A deep-learning–based algorithm for visible‑light and thermal‑imaging ship detection and tracking, capable of integrating with PTZ cameras to capture and upload images; thermal imaging provides full‑area fire‑point detection, while visible‑light sensors identify smoke and flames. Equipped with dual‑axis gyroscopic image stabilization, the system ensures that the surveillance feed remains unaffected by environmental vibrations. The device also features optical de‑fogging combined with algorithmic de‑fogging, and supports remote power cycling of the entire unit.
Single-IP dual-channel video, horizontal and tilt dual-axis gyroscopic mechanical image stabilization, deep-learning-based visible-light and thermal-imaging ship detection and tracking algorithms, real-time fire-point detection and smoke/fire recognition algorithms, intelligent scanning with Apple‑skin technology, intelligent cruise scanning, automatic rain‑wiper activation, and optical defogging combined with algorithmic defogging.

Application scenarios
Forest fire prevention, airport runways, maritime search-and-rescue monitoring, urban high-altitude surveillance, land and resource protection, offshore aquaculture—these and other applications all require exceptionally wind-resistant environments.
Parameter Specifications
| Dual-spectrum high-definition electro-optical pan-tilt unit |
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| Thermal imaging camera |
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| Imager |
Uncooled detector |
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| Effective pixels |
640×512 |
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| Focal length |
f=75mm |
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| Aperture |
F1.0 |
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| Frame rate |
50 frames per second |
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| Visible-light camera |
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| Imager |
1/1.8″ progressive-scan CMOS image sensor |
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| Effective pixels |
1920×1080P, 25 frames per second, 2-megapixel |
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| Illuminance |
Ultra-low-light camera, color mode with no fill light: 0.0005 lux; black-and-white mode: 0.00001 lux. |
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| Automatic control |
Auto white balance, auto gain, auto exposure |
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| Signal-to-noise ratio |
≥55dB |
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| Wide Dynamic Range |
120dB |
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| Bright-light suppression |
On/Off |
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| Backlight Compensation |
On/Off |
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| Noise reduction |
3D noise reduction |
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| Electronic shutter |
1/25 to 1/100,000 of a second, |
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| Day and Night Mode |
Filter switching |
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| Focus Mode |
Automatic/Manual |
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| Focal length |
6.0 mm to 320 mm, 52x optical zoom |
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| Horizontal viewing angle |
61.8° (wide angle) to 1.6° (telephoto) |
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| Maximum aperture ratio |
F1.4-F4.7 |
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| Monitoring distance |
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| Target/Distance |
Person 1.8*0.75m |
Car 2.3*2.3m |
Boat 10*4m |
Fire point 2*2m |
| Detection range |
3126m |
9584m |
16666m |
8333m |
| Recognition distance |
781m |
2396m |
4166m |
2083m |
| Recognition distance |
390m |
1198m |
2083m |
1041m |
| Pan-tilt function |
|
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| Horizontal range |
360° continuous rotation |
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| Horizontal velocity |
0.05°~250°/s |
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| Pitch range |
-60° to 90° rotation (with wiper) |
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| Vertical velocity |
0.05°~150°/s |
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| Table positioning accuracy |
0.1° |
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| Zoom ratio |
Support |
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| Preset point |
255 pieces |
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| Cruise Scan |
16 items |
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| Apple Peel Scan |
16 items |
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| Automatic sensor wipers |
Support |
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| Intelligent Analysis |
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| Visible-light and thermal imaging-based ship identification and tracking |
Minimum recognizable pixels: 40×20 |
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| Concurrent Tracking Targets: 50 |
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| The thermal‑imaging and visible‑light tracking algorithm supports configurable timed switching. |
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| Interlinked snapshot capture and upload: Supported |
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| Apple Peel Cruise Scan Interlock |
Support |
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| Fire Spot Detection |
Support |
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| Image stabilization function |
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| Gyro stabilization |
Dual-axis |
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| Stable frequency |
<=1HZ |
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| Gyro steady-state accuracy |
Pitch: 0.5°; after heading alignment, short-term steady-state accuracy: 0.5°. |
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| Maximum carrier tracking speed |
100°/s |
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| Network Functionality |
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| Video compression |
H.264/ H.265 |
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| Power-off memory |
Support |
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| Network interface |
RJ45 |
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| Compatibility |
ONVIF, GB/T GB28181, GA/T1400 |
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| Network protocol |
IPv4, HTTP, FTP, RTSP, DNS, NTP, RTP, TCP, UDP, IGMP, ICMP, ARP |
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| Physical parameters |
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| External Data Interface |
RS422 |
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| Power supply |
DC 24 V ±15%, 5 A |
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| Power |
Maximum power consumption: 28W–60W |
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| Protection rating |
IP67 |
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| Electromagnetic Compatibility |
Lightning protection, surge protection, and transient voltage protection, compliant with GB/T 17626.5 6 kV standard. |
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| Salt spray resistance |
720-hour continuous test, Severity Level 4 (optional) |
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| Operating temperature |
-40℃ to 70 ℃ |
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| Operating humidity |
Humidity less than 90% |
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| Size |
446 mm × 326 mm × 247 mm (including wiper) |
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| Weight |
20KG |
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Standard Package Contents
Content update in progress,...
Upon unpacking and use, the standard package includes the above accessories.
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