Option5-function manipulator arm
Electric arm with 5 DOF and 8 kg lift, controlled from the console joystick.
Subsea intelligence & intervention
ThresherMKI
SeeSenseIntervene
A compact observation-class ROV rated to 300 m, with a 4K 30× PTZ camera, DVL and USBL navigation, side-scan sonar, six-parameter water-quality sensing and an optional five-function arm.
- 300 m depth
- 10 kn max
- 8 h dives
- 4K 30× PTZ
- DVL + USBL
Why it wins
- 300 mDepth rating
- 8 hContinuous dive
- 6 DOFVectored thrust
- 600 mFibre-optic tether
About
Thresher MKI fits a work-class sensor and intervention suite into a 35 kg frame that a small crew can launch from a boat, a jetty or a ship's side.
4K PTZ camera30× optical zoom, 360° pan and 90° tilt.
Six vectored thrusters25 kgf thrust, 10 knots, six degrees of freedom.
6,000-lumen lightingVariable-intensity LED pods for murky water.
Fibre-optic tether600 m hybrid tether on an automatic TMS.
Built for zero visibility
Tech specs
| General | |
|---|---|
| Type | Observation-class ROV |
| Depth rating | 300 m |
| Dimensions | 750 × 420 × 350 mm |
| Weight | 35 kg |
| Operating temperature | −5 °C to +40 °C |
| Performance | |
| Max speed | 10 knots |
| Thrust | 25 kgf (55 lbf) |
| Manoeuvrability | 6 DOF |
| Payload | 10 kg |
| Endurance | 8 h continuous dive |
| Imaging | |
| Primary camera | 4K UHD colour, 30× optical zoom |
| Pan / tilt | 360° pan, 90° tilt |
| Secondary camera | 1080p HD + low-light monochrome |
| Lights | Up to 6,000 lumens, variable |
| Navigation and sonar | |
| Depth sensor | ±0.05 m |
| Attitude | 3-axis gyro and accelerometer, MEMS compass |
| DVL | 1 MHz; bottom track to 100 m, ±0.2% |
| USBL | Tracking to 5,000 m; better than 1% of slant range |
| Sonar | 600–1200 kHz side-scan; 150 m per side, 2 cm resolution |
| Water quality | |
| Dissolved oxygen | 0–20 mg/L (±0.2) |
| Water temperature | −5 °C to +60 °C (±0.1) |
| pH | 0–14 (±0.1) |
| Conductivity | 0–200 mS/cm (±1%) |
| Turbidity | 0–4000 NTU (±2%) |
| ORP | ±2000 mV (±20) |
| Tether and control | |
| Tether | 600 m fibre-optic hybrid with automatic TMS |
| Console | 24-inch HD touchscreen, dual-axis joystick |
| Manipulator (option) | 5-function electric arm, 5 DOF, 8 kg lift |
Thresher MKI
Observation-class subsea ROV
- 300 m depth
- 10 kn max
- 8 h dives
- 4K 30× PTZ
- DVL + USBL
Features
- 4K eyes
4K UHD 30× PTZ camera plus a low-light monochrome camera.
- Tracks when GPS fails
1 MHz DVL and USBL positioning out to 5,000 m.
- Sees in zero visibility
600–1200 kHz side-scan sonar, 150 m per side at 2 cm resolution.
- A water lab on board
Dissolved oxygen, temperature, pH, conductivity, turbidity and ORP.
- Intervention ready
Optional five-function electric arm lifts 8 kg.
- Full-shift dives
8 hours continuous on a surface-powered tether.
Attachments & accessories
What comes in the box and what you can add. Each item can be ordered on its own.
Option
StandardTether management system
600 m fibre-optic hybrid tether on an automatic drum with slip ring.
StandardSurface control console
Rugged case with a 24-inch HD touchscreen and dual-axis joystick.
OptionNavigation and sensor kit
DVL, USBL transponder, imaging sonar and water-quality sonde.
Possible enhancements
Options and upgrades we can build in for your requirement. Ask for any of them in your enquiry.
- OptionLaser scaler
Measure cracks, corrosion and objects straight from the video.
- OptionCathodic-protection probe
Check anodes and coatings on hulls and pipelines.
- OptionForward-looking multibeam
Navigate and search ahead in zero visibility.
- Option3D photogrammetry
Measured 3D models of hulls, piers and intakes.
- OptionOn-board AI detection
Flag objects, damage and marine growth live.
- OptionHull-crawler skid
Hold station on a hull in current for close inspection.
Applications
- Military & defenceLow-light target identification, deep ISR and covert object retrieval.
- Industrial infrastructurePipelines, dams, intakes and offshore structures.
- Research & broadcastMarine cinematography and environmental surveys.
Common questions
How deep can Thresher MKI operate?
It is rated to 300 m and dives for 8 hours continuously on its 600 m fibre-optic hybrid tether.
Can it navigate without GPS?
Yes. A 1 MHz Doppler velocity log holds station and tracks paths, and USBL gives the surface vessel its position out to 5,000 m.
Can it pick things up?
Fit the optional five-function electric arm: 5 degrees of freedom and 8 kg lift, driven from the console's dual-axis joystick.
What does it measure in the water?
Dissolved oxygen, temperature, pH, conductivity, turbidity and ORP, logged with depth and position.
Talk to our team
Request a quote
Tell us your requirement. We reply within one business day with a budgetary quote, a demo slot or the documents your tender needs.
- 1 dayResponse time
- GeMTender support