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MiniUAC-FLS800D 
Upgraded Version · Sharper Images
Dual-Frequency Forward Looking Sonar

850kHz / 1150kHz Imaging Sonar for ROV, AUV & Underwater Survey 

MiniUAC-FLS800D is a high-resolution forward-looking imaging sonar for underwater target search. Powered by upgraded algorithms and built-in image enhancement, it boosts image clarity by 30% to produce crisp underwater images. With switchable 850kHz / 1150kHz dual frequencies, it supports both far-range detection and near-field detailed scanning. Tuned for ROV/AUV obstacle avoidance, subsea inspection and object search, it outperforms many comparable international sonar systems.

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Overview

MiniUAC-FLS800D  Imaging Sonar 

Key Features:

  • Ultra-high resolution, 0.2° angular resolution
  • Real-time 850/1150kHz dual-frequency switching
  • Image enhancement to suppress background clutter
  • Network external trigger, reduce acoustic interference
  • 130°×20° FOV, max 120m detection range
  • Adjustable network bandwidth
  • Lightweight easy-assembly deployment pole
  • 1500m | Multiple housing materials, rated up to 1500m


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MiniUAC-FLS800D Upgraded Version · Sharper Images Dual-Frequency Forward Looking Sonar

Detailed Features


  1. Ultra-high Resolution for Minute Detail Capture 
    Range resolution up to millimeter level, angular resolution of 0.2°.
  2. Dual-frequency Switching, Full Coverage for Near & Far Targets 
    Real-time switching between low and high frequency to detect every target (850kHz & 1150kHz).
  3. Proprietary Image Enhancement Technology 
    Target-oriented enhancement mode suppresses most background clutter, optimizing single-target detection and automatic target recognition.
  4. Network External Trigger Support 
    Improves acoustic compatibility for AUVs and platforms with multiple acoustic sensors, effectively reducing acoustic interference from co-frequency / harmonic-frequency equipment.
  5. Extra-wide Detection Coverage 
    Horizontal FOV 130°, Vertical FOV 20°, maximum detection range 120m, meeting international standards.
  6. Adjustable Network Bandwidth 
    Freely configurable to fit various mounting platforms & mission scenarios, compatible with platforms using power line carrier.
  7. Portable Deployment Pole 
    Lightweight and easy to assemble.
  8. Multiple Versions for Variable Depth Operations 
    Housing options: Aluminum Alloy / Stainless Steel / Titanium Alloy, suitable for deep-water missions down to 1500 meters.


Dual-frequency Free Switching, Full Coverage of Near & Far Targets​

High frequency presents more target details_MiniUAC-FLS800D Dual-Frequency Forward Looking Sonar

High frequency presents more target details

Low frequency covers more targets-MiniUAC-FLS800D Dual-Frequency Forward Looking Sonar

Low frequency covers more targets


Flexible switching between 850 kHz and 1150 kHz dual frequency bands. Near and far targets are fully detectable with stable detail rendering and superior image intelligibility.​

Image Enhancement Technology 

 
The image enhancement function removes most background clutter, facilitating single-target detection and automatic target recognition. It is especially suitable for forward-looking collision avoidance of ROVs and AUVs. Highlighted display helps identify obstacles ahead.

Underwater bicycle achieves clearer images with image enhancement technology.

Specifications

Item Specification
Operating Frequency 850kHz / 1150kHz
Maximum Range 120m @850kHz / 40m @1150kHz
Minimum Range 0.1m
Range Resolution 3mm
Horizontal Field of View 130° @850kHz / 100° @1150kHz
Vertical Field of View 20°
Angular Resolution 0.25° @850kHz, beam width 1°; 0.2° @1150kHz, beam width 0.6°
Number of Beams 512
Data Update Rate Up to 40Hz
Rated Operating Depth 400m / 600m / 1000m
Input Voltage 24V – 36V DC
Average Power Consumption ≤48W
Communication Interface 100Mbps Ethernet
Frequency Control Online switchable between low and high frequency
Data Output Water column data, video stream, snapshot images
Built-in Software Functions Distance measurement, color palette, screenshot, video recording, horizontal/vertical image flip, sonar configuration
Sound Velocity Setting Manual input; seawater / freshwater mode switch
Synchronization Network external trigger
Weight ≤1.3kg (in air) / 410g (in water)
Dimension W125mm × D118mm × H80mm
Housing Material Aluminum Alloy / Stainless Steel / Titanium Alloy

Applications


  • Underwater Object Search & Recovery 
  • ROV / AUV Forward Obstacle Avoidance 
  • Subsea Construction Monitoring & Obstacle Survey
  • Aquaculture Infrastructure Inspection 
  • Diver Safety Monitoring & Underwater Operation Guard 
  • Rservoir & Dam Underwater Inspection

Applications-MiniUAC-FLS800D Dual-Frequency Forward Looking Sonar

Imaging Video