FIFISH E-MASTER — Industrial AI Underwater ROV
Industrial AI ROV · E Series
QYSEA's flagship industrial ROV — Ring-Wing propulsion, four onboard AI software modules, dual hot-swap batteries and 10,000-lumen imaging in one modular, single-operator platform. Unlock your mastery.
The E-MASTER in the Field
Inspect · Measure · Map · Navigate
One platform for the work that used to need several
The FIFISH E-MASTER is a revolutionary industrial AI underwater robot, engineered for high-precision measurement, inspection and survey in complex marine environments. It brings QYSEA's full engineering stack together — so a single deployment can inspect a structure, take quantitative measurements, navigate autonomously and map the seabed without swapping vehicles.
- Ring-Wing propulsion — +30% thrust · 3 knots · holds station in up to 3-knot flow
- Four onboard AI modules — QY-MT, QY-BT, U-INS Plus & AI Diver Tracking
- Forward & downward Q-DVL — station lock, collision avoidance, altitude hold
- Dual hot-swap batteries · 150 min runtime · 90% charge in 50 min
- 1/1.8" CMOS · 4K UHD · RAW · 10,000-lumen multi-lamp lighting
- Fully modular — battery, motors, imaging & accessories field-replaceable in ~5 min
The problems the E-MASTER was built to solve
Traditional subsea inspection and survey methods come with hard limits. The E-MASTER was designed specifically to remove them.
💸 High Cost
Crewed vessels, divers and specialist survey gear are expensive to mobilise. One operator and one ROV replace much of that.
⚠️ High Risk
Divers in currents, confined spaces and contaminated water carry real risk. The E-MASTER keeps people out of the water.
🌊 Depth & Current Limits
Weaker ROVs lose station in flow. Ring-Wing thrust and Q-DVL hold position to 200 m in up to 3-knot currents.
📐 Low Precision
Visual-only inspection isn't measurable. QY-MT delivers 99.7% accurate, documented, repeatable measurement.
Ring-Wing Propulsion
An innovative ring-wing motor system that rethinks ROV propulsion — delivering 30% more thrust than conventional layouts from the same power input.
More thrust, more control, in tougher water
Six high-performance metal wing propellers with an expanded blade area are arranged in a ring configuration around the body. The geometry maximises the volume of water each thruster accelerates and smooths thrust across all six axes — giving the E-MASTER a 30% power increase alongside remarkable reliability, wear resistance and corrosion protection.
- Holds station in stronger currents and tows heavier payloads
- Fine-grained omnidirectional control for close-tolerance inspection
- Metal propellers resist the flex and fatigue failures of plastic designs
Four AI Software Modules
The E-MASTER's intelligence is built into four integrated AI systems — each replacing specialist equipment that would otherwise need a separate deployment, operator or budget.
QY-MT — Smart Measurement Tool
QYSEA's AI-powered precision measurement system. Using the forward Q-DVL and laser together with proprietary AI algorithms, operators can analyse and measure underwater objects, fractures and damage with 99.7% accuracy — non-contact, no diver, no specialist calibration rig.
- Dynamic, adaptive, multi-angle measurement at any orientation
- Augmented-reality virtual ruler with customisable on-screen scale
- Re-measure recorded footage offline for inspection reports
- Document crack widths, corrosion areas and structural dimensions
QY-BT — Bathymetric Tool
Automated, precise underwater data collection that lets you survey seabeds, riverbeds and reservoirs and generate customisable 2D/3D topographic maps — deliverable survey data produced during normal inspection dives, with no separate survey vessel.
- Automated 2D/3D seafloor & structure topographic mapping
- Customisable map area and resolution parameters
- Reservoir & basin volume / capacity estimation
- One-click data report generation, export to GIS & reporting tools
U-INS Plus — Underwater Inertial Navigation
A deep-learning underwater inertial navigation system that provides precise position, velocity, heading and attitude — enabling surface-adaptive path planning and autonomous missions. Plan a route, press go, and the E-MASTER executes it without continuous pilot input.
- Subsea automatic navigation from deep-learning position estimation
- Custom inspection routes & survey patterns · one-click return-to-home
- Real-time motion tracking with historical path visualisation
- Custom POI recording & repeatable passes for change detection
AI Diver Tracking
QYSEA's self-developed underwater AI technology automatically identifies and locks onto a working diver in the video feed and follows them through the water — so the pilot can monitor instruments and tether while the ROV handles framing and safety overwatch.
- →Real-time diver identification via onboard computer vision
- →Autonomous follow — no manual pilot input needed
- →Proprietary AI image-filtering algorithm for turbid water
- →Supports dive-safety monitoring & diver-assistance missions
Q-DVL — Dynamic & Steady Hovering
Forward and downward Q-DVL sonar give the E-MASTER the most complete station-holding in the FIFISH range — locking position in current while avoiding collisions and holding altitude.
Hold a precise 3D position — no GPS, no anchor
The Q-DVL measures the ROV's velocity against the water and the seabed, so the flight controller can lock a precise hover for close-range inspection and measurement and resist omnidirectional flow of up to 3 knots — exactly where weaker ROVs drift off target.
- Stable hovering for close-tolerance inspection & QY-MT measurement
- Strong omnidirectional flow resistance up to 3 knots
- Foundation for U-INS Plus autonomous navigation & QY-BT mapping
Station Lock Hovering
Holds a fixed 3D position against current — stable enough for measurement and detailed close-up inspection.
Smart Collision Avoidance
Forward & downward sonar continuously scan for obstacles, alert the pilot and brake before impact in confined spaces.
Altitude / Distance Lock & Track
Holds a set height above the seabed or distance from a surface and follows the bottom contour for consistent survey passes.
Professional 4K Imaging & 10,000-Lumen Lighting
Engineered for industrial-grade documentation — wide-field macro capability, extreme illumination and RAW capture for defensible inspection records.
See more, in worse water, in finer detail
A large 1/1.8-inch CMOS sensor captures 4K UHD video and RAW stills, with a 176° super-wide surface view and 146° underwater panoramic perspective. Focus as close as 10 cm for welds, corrosion and coating defects — and AI auto-focus keeps the subject sharp even as sediment drifts through the frame.
1/1.8" CMOS Sensor
A large sensor gathers maximum light in poorly-lit deep environments, staying clean where smaller sensors produce noisy, unusable imagery.
176° / 146° Dual FOV
176° surface view for situational awareness on descent; 146° underwater panoramic to capture full pipe diameters, tank walls and hull sections in one frame.
10 cm Macro Focus
Focus as close as 10 cm for detailed close-ups of welds, corrosion pitting, crack propagation, fouling and coating defects.
10,000-Lumen LEDs
Multi-lamp LED arrays deliver 10,000 lumens across a 160° beam — near-shadowless light at three adjustable intensity levels.
AI Auto-Focus in Turbid Water
AI focusing holds sharpness even as particles and sediment cross the lens — critical in silty, post-disturbance and high-turbidity water.
RAW Format Capture
Full RAW preserves maximum sensor data for professional post-processing — essential for engineering reports and regulatory submissions.
Fluid Modular Architecture
Every major component is field-replaceable in minutes — directly cutting downtime and total cost of ownership over the ROV's service life.
Hot-swap batteries — no shutdown, no reboot
An upgraded circuit design carries two batteries with advanced hot-swap technology, so you can alternate a depleted unit for a charged one without powering down or restarting. With the optional Q-Energy Station, 150 minutes of standard runtime and a 50-minute charge to 90% keep back-to-back deployments running.
Component Swap in ~5 Minutes
Motor, imaging, lighting and battery modules are field-replaceable with minimal tools. Batteries and accessories release in seconds; a full part swap takes about five minutes — no workshop required.
Dual Load Interfaces
Independent top and bottom load interfaces mount accessories on both surfaces. With professional expansion docks the E-MASTER carries up to 6 operational tools at once.
Q-Energy Station
The optional portable smart charging platform manages your battery rotation — keeping spares charged and ready for continuous deployment sessions.
Designed for Masters of Every Marine Discipline
From surveyors and inspectors to engineers, environmental scientists and marine researchers — the E-MASTER is built for daily, repeatable professional work.
Underwater Measurement
Quantify cracks, corrosion and structural dimensions to 99.7% accuracy with QY-MT — non-contact and fully documented.
Hydrographic Survey
Map seabeds, riverbeds and reservoirs into 2D/3D topographic deliverables with QY-BT during a normal dive.
Shipping & Maritime Inspection
Hull, propeller, sea-chest and class inspections with AI diver tracking and 4K RAW documentation.
Tank & Pipeline Inspection
Confined-space entry with collision avoidance and altitude-lock for safe, repeatable internal inspection passes.
Offshore Energy
Platform, mooring and subsea-structure survey in current — Ring-Wing thrust holds station where it matters.
Reservoir & Dam Inspection
Capacity estimation and structural survey of reservoirs and intakes without dewatering or diver entry.
Q-iRC — Industrial Remote Controller
Command with power, deliver with precision. A 7-inch 1,500-nit sunlight-readable display, 8 programmable smart keys and up to 8 hours of battery in a ruggedised handheld unit.
Key Specifications
| Display | 7" Full HD |
| Brightness | 1,500 nits |
| Battery Life | Up to 8 hours |
| Smart Keys | 8 programmable |
| Processor | Next-gen octa-core |
| Connectivity | USB-C/A · Ethernet · Wi-Fi · HDMI |
☀️ Glare-Free in Direct Sunlight
1,500 nits peak brightness — fully readable on deck in bright daylight, no tent or shade required.
🎛️ 8 Programmable Smart Keys
One-tap collision avoidance, sonar view, positioning map, diver tracking and multi-window switching — configured for your mission.
📡 Real-Time Multi-Screen
Live camera, sonar, bathymetric map, sensor data and heading unified on one display for faster decisions.
Compatible Accessories & Payloads
The dual-interface expansion system supports the broadest accessory range in the FIFISH lineup — from sonar and industrial controllers to multi-parameter sensors and professional docks.
Q-DVL Sensors
Additional DVL sensors for expanded station-holding and navigation capability.
Laser Scaler
Dual-laser scale reference for footage-embedded measurement independent of QY-MT.
Echosounder
Single-beam depth measurement for seabed profiling and water column characterisation.
Robotic Arms
Two-claw and three-claw robotic arms for object retrieval and manipulation tasks.
Q-iRC Industrial Controller
Bright display, long endurance industrial remote with programmable keys for extended professional deployments.
Q-Energy Station
Multi-battery charging platform — manage your full battery rotation and keep spares ready.
Water Quality Sensors
Full suite: DO, salinity, turbidity, pH, 4-in-1 sensor. Concurrent environmental monitoring during inspection.
Professional Expansion Docks
Mount up to 6 simultaneous accessories on the E-MASTER for complex multi-task mission profiles.
Beyond the QYSEA catalogue, the E-MASTER's open payload interface also integrates compatible third-party sonar and USBL positioning, such as Cerulean Sonar's Omniscan 450 and ROV Locator — ask us to confirm integration for your mission.
Full Specifications
Performance & Physical ▾
| Maximum Depth | 200 metres |
| Maximum Speed | 3 knots |
| Flow Resistance | Up to 3 knots (omnidirectional) |
| Propulsion | Ring-Wing · 6 metal wing propellers · +30% power |
| Degrees of Freedom | 6 DOF — 360° omnidirectional |
Camera & Imaging ▾
| Camera Sensor | 1/1.8" CMOS |
| Video Resolution | 4K UHD |
| Photo Format | RAW + JPEG |
| Surface FOV | 176° (super-wide) |
| Underwater FOV | 146° (panoramic) |
| Minimum Focus | 10 cm macro |
| Auto-Focus | AI-assisted · effective in turbid water |
Lighting ▾
| Total Output | 10,000 lumens |
| Beam Angle | 160° |
| Configuration | Multi-lamp LED array |
| Intensity Levels | 3 adjustable levels |
Navigation & Autonomy ▾
| Q-DVL | Forward + Downward · station lock · collision avoidance |
| U-INS Plus | Deep-learning autonomous navigation · custom path |
| QY-MT | AI measurement · 99.7% accuracy · AR overlay |
| QY-BT | 2D/3D bathymetric mapping · volume estimation |
| AI Diver Tracking | Real-time diver identification and follow |
| Home Return | One-click automated return-to-home |
Power System ▾
| Battery Configuration | Dual — hot-swappable |
| Operational Duration | 150 minutes (standard) |
| Charge Time | 90% in 50 minutes |
| Battery Swap | Seconds — no shutdown required |
Modular Design ▾
| Component Swap | ~5 minutes (motors, imaging, lighting, battery) |
| Load Interfaces | Dual (top + bottom) |
| Max Concurrent Tools | Up to 6 (with expansion dock) |
| Charging Platform | Q-Energy Station (optional) |
Specification Sheets & Brochures
Download the official QYSEA FIFISH E-MASTER documentation — technical specifications and product brochure — sourced directly from QYSEA.
Request E-MASTER Pricing
Tell us about your inspection requirements and we will prepare a complete EUR quote — including the accessories and expansion modules recommended for your specific missions.
Request a Quote — FIFISH E-MASTER
Describe your application and we will recommend the right E-MASTER configuration and accessory payload for your operations.