FIFISH V6 EXPERT Professional Inspection ROV
Operating underwater on its tether
Your underwater productivity tool - a versatile professional ROV with a 4K camera shooting up to 240 FPS slow-motion, dual 6,000-lumen LEDs, DNG RAW capture and the Q-IF multi-tool ecosystem for inspection, measurement and environmental monitoring.
From exploration to professional work
The FIFISH V6 EXPERT elevates the FIFISH V Series from exploration to professional inspection. Its 4K camera with up to 240 FPS slow-motion reveals detail invisible at normal speed - corrosion patterns, crack propagation, sediment movement and marine-life behaviour - while dual 6,000-lumen LEDs and a 128 GB removable SD card sustain extended dives without compromising data quality.
- 01Thrusters6 DOF · 3 knots360° omnidirectional movement. Q-MOTOR corrosion and sediment protection.
- 02Camera4K UHD · 240 FPS12 MP stills, F/2.5, 166° ultra-wide. DNG (RAW) and JPEG.
- 03Q-IF interfaceMulti-tool portOne standardised docking port connects sonar, measurement tools, manipulators, water-quality sensors and navigation systems.
- 04PowerUp to 5 hours90% charge in 1 hour. Optional onshore power (OPSS) for unlimited runtime via tether.
- 05Lighting6,000 lmDual LEDs for even, shadow-free illumination.
The V6 EXPERT in the Field
The work the V6 EXPERT was built to do
A single, portable ROV that replaces several specialist trips - keeping people out of the water and turning visual inspection into measurable, documented data.
01See the detail
4K at up to 240 FPS plus DNG RAW capture documents corrosion, cracks and fast events that normal-speed video misses.
02Work in the dark
Dual 6,000-lumen LEDs restore true colour and contrast at depth and in turbid water where ambient light fails.
03Measure, don't guess
The Q-IF interface adds laser scaler, AR ruler and distance tools so dimensions and crack sizes are quantified, not estimated.
04One adaptable platform
Sonar, manipulators, sensors and navigation modules dock to a single port - reconfigure for each mission instead of buying new gear.
Professional 4K Camera
Every detail of the imaging system is built for professional output - from DNG RAW capture to extreme 240 FPS slow-motion through a 166° ultra-wide lens.
See more, in finer detail, in worse water
A 4K UHD camera with a 166° ultra-wide F/2.5 lens captures 12-megapixel stills in DNG RAW - the full, uncompressed sensor data professionals need for colour grading, HDR and defensible inspection reports. Record at up to 240 FPS to slow rapid events - propeller damage, fish movement, sediment disturbance - right down to clear, analysable frames.
- 12 MP stills in DNG (RAW) and JPEG
- F/2.5 aperture gathers maximum light at depth
- 128 GB plug-and-play SD card - swap without tools
- AI Vision Lock: Touch Lock, Station Zoom, Off-Centre & Slide Lock
The difference dual 6,000-lumen LEDs make at depth - same scene, lights off vs. on.
Ambient Light Only
At depth, natural light collapses to a dim blue-green cast - texture, colour and fine detail are lost.
Dual 6,000-Lumen LEDs
Two LED arrays restore even, shadow-free illumination and true colour across the wide field of view.
4K UHD · 240 FPS
Record up to 240 frames per second for smooth slow-motion playback that reveals rapid underwater events in clear detail.
DNG RAW Photos
12 MP stills in uncompressed DNG RAW - the full sensor data for professional colour grading and maximum dynamic range.
166° Ultra-Wide
A 166° F/2.5 lens captures full structural context in a single frame - ideal for documentation in confined spaces.
AI Vision Lock
Touch Lock, Station Zoom, Off-Centre Lock and Slide Lock track subjects and automate camera movements.
Q-STEADY 2.0 & Station Holding
Sharp footage and consistent inspection need a stable platform. The V6 EXPERT combines electronic stabilisation, active lock modes and corrosion-resistant motors to keep every shot smooth.
Smooth footage, held position, every dive
Q-STEADY 2.0 electronic image stabilisation uses real-time orientation data to compensate for thruster vibration, tether tension and water turbulence - delivering steady footage even during active navigation. Underneath, Q-MOTOR thrusters are sealed against saltwater ingress and biofouling for consistent thrust across long, high-use deployments.
- Compensates for thruster vibration and tether-tension artefacts
- Smooth output even during directional changes
- Q-MOTOR corrosion & sediment protection for low maintenance
Posture Lock
Locks the body angle - level, angled or inverted - regardless of thrust. The pilot controls position while the ROV holds the set camera angle for consistent inspection passes.
Depth Lock
Holds a fixed depth via the pressure sensor while the pilot moves horizontally - the ROV compensates for current, thrust and tether pull. Ideal for level transect surveys.
Onshore Power Supply
The optional OPSS replaces the internal battery with shore-supplied power through the tether - unlimited runtime for tank inspections, monitoring and extended surveys.
Multi-Tool Accessory Ecosystem
The Q-IF Multi-Tool Extension Interface turns the V6 EXPERT into a modular work platform. One standardised docking port connects the entire QYSEA accessory ecosystem across five functional categories.
Reconfigure for the mission, not the budget
Inspection cameras, sonar, measurement tools, manipulators, water-quality sensors and navigation systems all dock to the same standardised interface. Start with what your work needs today and expand the kit over time - the ROV adapts instead of being replaced.
- 2D imaging sonar for navigation and target-finding in turbid water
- Laser scaler, AR ruler and distance tools for non-contact measurement
- Robotic arm, retrieval hook and net-patch tools for intervention
- U-QPS underwater GPS, DVL station-lock and USBL positioning
Inspect
Q-Camera for secondary viewpoints, 2D imaging sonar for turbid water, sports-camera mounts and additional lighting extend the V6 EXPERT's sensing beyond its built-in camera.
Measure
Compass Ruler, Laser Scaler, AR Ruler, Distance Meter and Altitude Meter quantify dimensions, distances and crack sizes directly from the ROV - no contact required.
Navigate
U-QPS Underwater GPS for geo-referenced position tracking and POI marking, plus DVL Station Lock and USBL for high-accuracy positioning in demanding sites.
Manipulate
Robotic Arm for object retrieval, Retrieval Hook (100 kg capacity), Net Patch Kit for aquaculture repairs, Underwater Dozer and Fishing Net for collection.
Sample
Water Sampler (100 mL / 500 mL), Dissolved Oxygen, Salinity, Turbidity and pH sensors, and a Mud Sampler - full environmental monitoring from one platform.
Enhance
Q-iRC Industrial Remote Controller, Propeller Protectors, Electrical Spool and a swappable Battery Capsule for continuous operations.
Choose Your Package
The V6 EXPERT is offered in four factory-configured packages - QYSEA lists them as Standard, Arm, Extended Range and Extended Range Arm (order codes M100, M100A, M200, M200A). Every one of them ships with the ROV, remote controller, spare propellers, power adaptors and a protective case; what changes is tether length, case type and whether the robotic arm is fitted.
Standard Pack
Inspection and survey work, EPP transit case.
- FIFISH V6 EXPERT ROV
- 100 m tether spool
- Remote controller
- Spare propellers (×2)
- SD slot protector & cover removal tool
- Adaptors for controller and ROV
- EPP protective case
Arm Pack
Adds intervention and a hard industrial case.
- Everything in the Standard Pack
- Two-finger robotic arm with parallel grippers
- 100 m tether spool
- Hard industrial case (upgrade from EPP)
Extended Range Pack
Twice the working radius, hard case as standard.
- FIFISH V6 EXPERT ROV
- 200 m tether spool
- Remote controller
- Spare propellers (×2)
- SD slot protector & cover removal tool
- Adaptors for controller and ROV
- Hard industrial case
Extended Range Arm Pack
The full working configuration - reach plus intervention.
- Everything in the Extended Range Pack
- Two-finger robotic arm with parallel grippers
- 200 m tether spool
- Hard industrial case
What is actually in the box
QYSEA's own packing lists for each of the four configurations - useful for checking a delivery in or writing a tender annex.
Not sure which package suits your mission? Contact us - we will recommend the right configuration and include any additional accessories you need in a single quote.
Get a Recommendation
Professional Mission Profiles
The V6 EXPERT is deployed across demanding commercial and scientific environments - anywhere that needs reliable underwater imaging, measurement or environmental monitoring to 200 m depth.
Professional Diver Support
Act as topside eyes-on-ROV for dive teams - monitor diver safety, light zero-vis work, document tasks and coordinate surface-to-diver communication.
Marine Conservation
Document reef health, coral bleaching, invasive species and habitat change with 4K RAW imagery for scientific publishing and impact assessment.
Ocean Science & Research
Sampling tools, water-quality sensors and geo-referenced POI logging make it a complete field instrument for oceanographic surveys.
Aquaculture & Mariculture
Inspect and repair net cages in situ, monitor fish health and water quality, and survey seabed conditions below pens.
Underwater Infrastructure
Survey bridge abutments, dam walls, pipe outlets and harbour structures to 200 m - measuring crack widths with laser and AR tools.
Search & Recovery
Locate and document submerged objects; the Retrieval Hook (100 kg) and Robotic Arm allow intervention without a manned dive in hazardous conditions.
Full Specifications
Performance & Physical ▾
| Maximum Depth | 100 m (Standard & Arm Pack) · 200 m (Extended Range packs) |
| Maximum Speed | 3 knots (1.5 m/s) |
| Operating Runtime | Up to 5 hours (dive profile dependent) |
| Degrees of Freedom | 6 DOF - 360° omnidirectional |
| Tether Length | 100 m or 200 m spool as supplied · 300 m spool available |
| Supplied Spares | Spare propellers (×2) · SD slot protector & cover removal tool |
Camera & Imaging ▾
| Resolution | 4K UHD video · 12 MP stills |
| Frame Rate | Up to 240 FPS slow-motion |
| Photo Format | DNG (RAW) and JPEG |
| Lens Aperture | F/2.5 |
| Field of View | 166° ultra-wide |
| Storage | 128 GB SD card (pre-installed, plug-and-play) |
| Stabilisation | Q-STEADY 2.0 electronic image stabilisation |
| AI Vision Lock | Touch Lock · Station Zoom · Off-Centre · Slide Lock |
Lighting ▾
| LED Output | 6,000 lumens (dual) |
Control & Stability ▾
| Depth Lock | ✓ Built-in (pressure sensor) |
| Posture Lock | ✓ Built-in |
| Motor Technology | Q-MOTOR (corrosion & sediment protected) |
Power & Charging ▾
| Fast Charging | 90% capacity within a 1-hour charge |
| Onshore Power (optional) | OPSS - unlimited runtime via tether |
Connectivity & Interface ▾
| Multi-Tool Interface | Q-IF (standardised accessory docking) |
| Control App | FIFISH App (iOS / Android) |
| Optional Controller | Q-iRC Industrial Remote Controller |
Specification Sheets & Brochures
Download the official QYSEA FIFISH V6 EXPERT documentation - technical specifications and product brochure - sourced directly from QYSEA.
The V6 EXPERT on the Job
Footage from QYSEA showing the FIFISH V6 EXPERT at work - the productivity-focused ROV and the kind of demanding inspection and exploration dives it is built for.
The V6 EXPERT as a complete professional productivity solution - the multi-tool platform this page is built around. Source: QYSEA.
Confined-Space Exploration
Exploring a flooded cave - the omnidirectional stability and lighting that make tight, low-visibility dives manageable.
Request V6 EXPERT Pricing
Tell us which package and accessories you need - we will prepare a complete EUR quote within one business day.
Request a Quote - FIFISH V6 EXPERT
Select your preferred configuration and describe your mission requirements below.