EXRAY™.
Cut the Cord.
Go Anywhere.
At just 9 kg and 13.4 cm wide, EXRAY is the world's most capable compact inspection ROV. Six degrees of freedom, 6–8 hours of endurance, FHD video with 4K stills, modular sensor payloads and optional tether-free operation via the LUMA optical modem — all DNV class approved.
The inspections that used to mean dewatering or divers
Tanks, penstocks, ballast voids and confined wet spaces are exactly where conventional inspection is slowest, costliest and most dangerous. EXRAY was engineered to remove those limits.
Too Tight to Enter
Standard ROVs are too large for hatches, pipes and penstocks — leaving dewatering or confined-space diving as the only option.
Diver Risk & Cost
Confined-space and contaminated-water dives carry real risk and heavy mobilisation cost. EXRAY keeps people out of the water.
Tether Snag
Cables catch on internal structure, valves and machinery. EXRAY can run fully wireless via the LUMA optical modem.
Slow to Deploy
Crane lifts and support vessels eat time. At 9 kg, one operator carries EXRAY to the water's edge and dives in minutes.
Built for Where Others Can't Go
EXRAY's ultra-compact form factor and six-degree-of-freedom control unlock inspection scenarios that were previously impossible — or that demanded a costly dive team.
Fits where nothing else does
At 13.4 cm (5.25 in) across and 9 kg, EXRAY slips through access hatches and confined spaces that rule out every conventional ROV. Tanks, pipes, penstocks and ballast voids all become accessible — carried to the water by one person and deployed in minutes.
- Access hatches, manways and pipe bores closed to standard ROVs
- Single-operator deployment from any quay, jetty or vessel edge
- Replaces confined-space diver entry on many inspection tasks
Precise in current. Long on the job.
Full six-axis control — surge, sway, heave, roll, pitch and yaw — gives pilots exact station-keeping for close-up inspection, even in flow and confined spaces. A long-duration battery delivers 6–8 hours of dive time, and a 40-minute charge keeps EXRAY running multiple missions a day.
- Stable hover for welds, corrosion and coating close-ups
- FHD live video with 4K still capture and geo-tagged points of interest
- Modular payload bay with NAVIA™ auto-detection of attached sensors
FHD Video · 4K Stills
Crystal-clear undistorted Full HD live video with 4K still capture. Geo-tagged points of interest feed straight into structured reports.
Modular Payloads
Industry-standard payload connectors with NAVIA™ auto-detection — water quality, sonar, thermal and structural sensors plug straight in.
Optional Wireless
EXRAY uniquely supports tether-free operation via the integrated LUMA optical modem — removing cable management entirely.
IMU & Depth Sensing
Onboard inertial measurement, pressure and temperature sensing keep orientation, depth and vehicle health on the pilot screen.
PILOT & INSPECTOR Stations
Choose the 8 kg PILOT control station or the 7 kg INSPECTOR station — both run the same NAVIA™ interface.
DNV Class Approved
EXRAY is DNV class approved — ready for class-recognised inspection work in regulated maritime and energy environments.
Automated Payload Detection. Instant Reports.
The NAVIA™ control software detects and configures any attached sensor the moment it connects, overlays live data on the video feed, and turns geo-tagged findings into inspection reports at the press of a button.
One interface from plan to report
Set up a dive, manage multiple EXRAY units, monitor battery and telemetry, then capture geo-tagged points of interest as you fly. Sonar and camera views sit side by side, and structured reports with annotated imagery are generated on completion — no separate post-processing suite required.
- Automatic payload detection & configuration on connection
- Live camera and sonar views on a single screen
- Geo-tagged Points of Interest captured during the dive
- One-press structured inspection report generation
- Multi-vehicle fleet view with live battery & status
Go wireless. Lose the tether entirely.
EXRAY is the only compact inspection ROV with a built-in optical wireless modem option. Paired with LUMA, the tether can be removed completely — ideal for rotating machinery, spiral staircases and multi-chamber tanks where a cable creates real safety risk. The operator experience is unchanged: same NAVIA™ interface, now over light.
- Integrated LUMA optical modem eliminates tether drag and snag
- Full FHD video streaming over the wireless optical link
- Wireless range up to 50 m in clear water · full 6-DOF control retained
Full EXRAY Specifications
Complete technical data for the EXRAY inspection ROV. Contact us for mission-specific configuration advice.
Physical & Performance ▾
| Vehicle Weight | 9 kg (20 lbs) |
| Width | 13.4 cm (5.25 in) |
| Depth Rating | 200 m |
| Degrees of Freedom | 6-DOF |
| Max Speed | Up to 2 knots (1 m/s) |
| Operating Temperature | 0 – 40°C (32 – 104°F) |
Power & Endurance ▾
| Battery Endurance | 6 – 8 hours typical |
| Charge Time | ~40 minutes |
Tether & Communication ▾
| Standard Tether | 100 m twisted copper pair, 4 mm diameter |
| Extended Tether | Up to 300 m (optional) |
| Wireless Option | LUMA optical modem (integrated) |
Imaging System ▾
| Video | Full HD (FHD) — undistorted |
| Still Images | 4K resolution |
| Data Management | Geo-tagged POIs, instant report generation |
Sensors & Navigation ▾
| IMU | Inertial Measurement Unit — orientation & rotation tracking |
| Depth Sensor | Internal pressure sensor |
| Temperature Sensor | Internal vehicle temperature monitoring |
| Payload Interface | Industry-standard connectors, NAVIA™ auto-detection |
Control Stations ▾
| PILOT Station | 8 kg (18 lbs) |
| INSPECTOR Station | 7 kg (15 lbs) |
| Interface | NAVIA™ UI — auto payload detection & data display |
Certifications ▾
| Classification | DNV class approved |
Everywhere You Need to See
EXRAY's compact size and long endurance open up inspection scenarios that were previously impossible, dangerous, or prohibitively expensive.
Confined Space Inspection
At 13.4 cm wide, EXRAY accesses tanks, pipes, penstocks and voids that are physically inaccessible to conventional ROVs or that require costly confined-space diver entry.
Hydropower & Energy
Dam walls, intake channels, turbine wells and penstock interiors — clear video and 4K documentation in environments where traditional inspection is dangerous or impossible.
Oil & Gas Assets
Ballast tank interiors, riser annuli and manifold access — with modular sensors for CP measurement, sonar imaging and environmental monitoring auto-detected by NAVIA™.
Aquaculture
Net condition assessment, mooring chain inspection and fish-health monitoring. EXRAY's compact footprint minimises disturbance to livestock while covering the whole pen.
Defence & Security
Harbour security surveys, hull threat investigation and infrastructure protection — with optional wireless LUMA operation removing all tether-related signatures.
Municipal Infrastructure
Water reservoirs, sewage outfalls, intake channels and bridge piers — fast, safe, single-operator deployments replacing lengthy dewatering or dive mobilisation.
Request a Quote for EXRAY
Tell us about your inspection challenge and we will prepare a tailored quote or answer any technical questions. SepcoTech is an authorised Hydromea distributor.
Send Us a Message
Fill in the form below and our team will respond within one business day.