01
Reels & tether
The electric E-Reel and 200–400 m tether spools that keep the link tidy at depth.
Experts inunderwater drones and photogrammetry.
Capabilities
More than hardware.
MENSOR covers the whole survey chain — the dive, the data and the deliverable an engineer can sign off on.
01
Inspection & survey dives
Dams, bridge piers, ship hulls and tanks — flown by our crew or yours; documented to an agreed protocol.
02
Photogrammetry & 3D models
A dive becomes a measurable model of the structure that an engineer can rotate, section and dimension.
03
Footage post-processing
Colour correction, dehaze and stabilization turn raw underwater video into documentation that holds up in a report.
04
Live image enhancement
Real-time picture improvement during the dive keeps the operator's view sharp even in murky water.
Selected work, from dams to ship hulls.
The fleet
We offer 7 models that cover every need at any price.
Not sure which hull and loadout? The configurator keeps the compatibility straight for you.
Build it in the configurator
DoryFor first dives & travelDepth — 15 m$699$699
F1 ProNewFor anglersDepth — 20 m (pod)$1,119$1,119
Gladius Mini SBest sellerFor creators & dive crewsDepth — 100 m$1,499$1,499
M2 SFor inspection & recovery teamsDepth — 100 m$3,149$3,149
M2 ProFor all-day industrial workDepth — 150 m$4,199$4,199
M2 Pro MaxBest sellerFor industry & scienceDepth — 200 m$7,749$7,749
Chasing XNewFor strong currents & deep workDepth — 350 m$40,499$40,499
Accessories
A complete range of accessories and spare parts.
Genuine CHASING accessories and spare parts in stock in Hradec Králové — reels, grabbers, sonars, batteries and transport cases.
Not sure what fits your drone? The configurator keeps ports and compatibility straight as you build a set.
Build a set in the configurator02
Grabber claws & samplers
Two- and three-jaw claws plus water samplers for recovery and science work.
03
Inspection aids
Laser scalers, distance locks and external lights for measurable survey footage.
04
Batteries & power
Spare flight batteries, chargers and shore-power supplies for shift-length runtime.
05
Navigation
DVL positioning modules for station-keeping and straight transects where GPS can't reach.
06
Imaging sonars
Ping360 scanning and Oculus multibeam sonars for zero-visibility water.
07
Controllers
Remote controllers and smartphone holders for one- or two-operator crews.
08
Cases & backpacks
Hard cases and backpacks cut for each hull and its kit.
09
Spare parts
Motors, propellers, covers and structural parts that keep every hull in service.
Compatibility varies by model. Our team will be happy to help you choose the right configuration for your drone.
Ask about availability →Service
Measured, maintained, back in the water.
MENSOR is an authorized CHASING service point for the Czech Republic and Central Europe. Drones arrive in Hradec Králové — they leave calibrated.
01
Repairs & genuine parts
Warranty and post-warranty repairs with original thrusters, seals and electronics — pressure-tested before they ship back.
02
Firmware & calibration
Firmware updates, compass and depth-sensor calibration, camera checks — the annual once-over that keeps footage usable as evidence.
03
Training & commissioning
On-site pilot training for crews, mission planning and first-dive commissioning for industrial deployments.
04
Loaner fleet
A repair shouldn't sink your season — loaner hulls keep your operation diving while yours is on the bench.
Typical turnaround: 5–10 working days.
Book a service slot3D scan
What the drone brings back.
A survey does not end with footage. Photogrammetry turns a dive into a measurable model of the structure — one you can rotate, zoom and hand to an engineer.
Drag to rotate · scroll to zoom
Loading scan
Image processing
The same footage, surfaced.
Depth swallows color and contrast — raw footage comes back green, murky and flat. Our processing pipeline brings back what the water took. Drag the divider to compare.
Color pipeline · raw vs. processed
Drag the divider
BeforeAfter
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Deployment economics
The drone pays for itself in a few dives.
Commercial diving has its rules: a three-person crew, bottom-time limits, decompression, insurance. An ROV goes in with no human at risk — and the invoice for an inspection day looks very different.
Conventional inspection
Dive crew
- Crew
- 3 people, as regulations require
- Bottom time
- 2× 40 minutes, then decompression
- Mobilisation
- days — equipment, standby diver, permits
- Working depth
- typically down to 40 m
Inspection day
$1,950
MENSOR
ROV + operator
- Crew
- 1 operator on shore
- Bottom time
- the whole shift, no decompression
- Mobilisation
- 15 minutes out of the case
- Working depth
- 100–200 m depending on model
Inspection day
$380
Saved every day on the water
$1,570
Yearly savings
$18,840
At this rate, a CHASING M2 Pro pays for itself after three inspection days.
Indicative model figures — rates vary by site and scope. We'll happily run the numbers for your operation.
MENSOR // CHASING FLEET // 200 M // 8 THRUSTERS // 4K EIS // PRAGUE // MENSOR // CHASING FLEET // 200 M // 8 THRUSTERS // 4K EIS // PRAGUE // MENSOR // CHASING FLEET // 200 M // 8 THRUSTERS // 4K EIS // PRAGUE //
Ready to deploy.
Every CHASING model ships from our Hradec Králové warehouse with EU warranty and lifetime pilot support. Order today, dive this weekend.
Order now
Free EU shipping · 2-year warranty · Sea-trial days in Hradec Králové