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Contact Information
Phone:86 010-51284966
Phone:86 18518110097
E-mail:bjsbl_sale@163.com
Address: Room 403, Building B, Xinhua International Center, Huaxiang, Fengtai District, Beijing
model:
BF-SN15
Product Model:
Underwater sonar life detector
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Product Name | Underwater Topography Detector (Sonar Detector) |
Model NO. | HDS |
Brand | SOBOLA |
Certification | Test Report, Software Copyright Registration Certificate |
Core Technology | High‑definition integrated sonar probe, CHIRP scanning, Down‑scan & Side‑scan imaging technology, built‑in GPS positioning and electronic chart system |
Detection Environment | Rescue water‑searching operation, inland rivers, reservoirs, lakes, coastal waters, open‑water engineering survey and underwater salvage missions |
Primary Function | Real‑time underwater target search, underwater structure mapping, seabed terrain imaging, GPS navigation, sonar video recording, data playback and analysis, auxiliary underwater salvage operation |
System Configuration | 1×Main Unit (Built‑in Battery), 1×Sonar Probe, 1×Stainless‑steel Towing Bracket, 1‑meter‑long Hand‑held Probe Rod, Accessories and Operation Manual |


The HDS underwater topography detector is equipped with a high‑definition integrated sonar probe, supporting down‑scan, side‑scan and traditional scanning functions. It is designed to locate underwater targets during rescue missions, detect underwater structures and generate real‑time underwater images. It provides clear views of the water area and river‑bed/seabed beneath the vessel, delivering reliable visual support for salvage and underwater survey operations.
Widely used in shipping transportation, port construction, marine fishery, aquaculture, water‑conservancy project, bridge‑road engineering, marine resource exploration, submarine pipeline & cable laying, national defense and maritime‑boundary survey work.

1. Integrated Host‑battery Design & Dual‑mode Operation
7‑inch display, Chinese operating system, multi‑touch screen + physical keys dual control. Adjustable screen brightness and night‑mode switch available.
2. Rich Navigation & Alarm Functions
Real‑time display of GPS position, water depth, water temperature, time, sonar frequency, sailing distance, speed, course and supply voltage. Audio alarm and GPS alarm are supported.
3. Multi‑split‑screen Display
Multi‑window simultaneous viewing or independent single‑screen switching, freely‑combined interface layout.
4. Built‑in CHIRP Scan & Electronic Chart
Traditional CHIRP scanning mode, global base nautical chart and AIS (Automatic Identification System) function available.
5. Wide‑angle Field of View & Image Zoom
Viewing angle: 85° up‑down, 85° left‑right. 6‑times image zoom‑in and zoom‑out supported.
6. Large‑capacity Waypoint & Route Storage
Stores up to 5000 waypoints and 100 navigation routes.
7. Multiple Color‑palette Modes
11 optional pseudo‑color display modes for better underwater‑target recognition.
8. Touch‑lock Protection
Screen touch‑lock function prevents accidental operation in bumpy water‑surface environments.
9. Sonar‑video Recording & Playback
Dual micro‑SD card slots, support sonar scan recording, playback and post‑mission data analysis.
10. Portable All‑in‑one Unit, Long Working‑time
Built‑in rechargeable battery, no extra battery required, continuous runtime up to 6 hours. Suitable for vehicle transport, land‑carrying and ship‑borne survey.

Parameter Item | Technical Specification |
Display | 7‑inch screen, Chinese OS, touch & key dual operation, night‑mode available |
Displayed Information | GPS, water depth, water temperature, speed, course, voltage, sonar frequency; audio & GPS alarm |
Waypoint & Route | 5000 waypoints, 100 navigation routes |
Image & Display | 85°×85° viewing angle, 6×zoom, 11 pseudo‑color palette modes, touch‑lock function |
Storage | Dual Micro‑SD card slots, support sonar recording and playback analysis |
Sonar Operating Frequencies | 50kHz, 83kHz, 200kHz, 455kHz, 700kHz, 800kHz, 1073kHz, 1200kHz |
Sonar Probe | Power:800W, Water‑pressure resistance: 300 m, IP68 protection grade |
Scanning Depth Range | Side‑scan: 150 m, Down‑scan: 150 m |
Accessories | Stainless‑steel mounting bracket, 1‑meter handheld probe rod |
Power Supply & Endurance | Integrated built‑in battery, continuous working time: 6 hours |

Water‑search rescue, shipping traffic, port & wharf construction, marine fishery, aquaculture, water‑conservancy facilities, bridge‑road construction, marine‑resource exploitation, submarine pipeline and cable laying, national‑defense survey, maritime‑boundary demarcation, underwater salvage and underwater‑terrain investigation.
keyword:
Life detection
Product Name:
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