Secondary Market
Survey Equipment for Sale
Norbit systems
Portable Survey Kits
Control & topside
Survey Electronics
EdgeTech systems
Towfish Packages
Valeport instrumentation
SVP & CTD Sensors
Sonardyne hardware
Acoustic Positioning
Handling detail
Deployment Hardware
Used marine survey equipment brokered through Dockstr; multibeam echo sounders, side-scan sonars, sub-bottom profilers, USBL and INS systems, AUVs and complete vessel-fit survey spreads. Single sensor or full configured spread.
At a glance
Survey - what the desk handles
Full sensor suite
Multibeam, side-scan sonar, sub-bottom profilers, magnetometers, USBL and INS systems.
AUV and platform brokerage
Including small and mid-class AUVs from manufacturer trade-ins and operator divestments.
Data pack before offer
Calibration history, mount data and last service report assembled before any offer goes out.
Direct to survey contractor
Selling used survey equipment? Hydrographic and geophysical equipment depreciates fast on paper but holds real resale value.
Buy-side and sell-side
Two sides of the same desk
Buying
Buy used survey equipment through Dockstr: share your scope of work, survey objective, budget and preferred solution. We will return matched options from operator fleets and OEM trade-ins.
Selling
Selling used survey equipment? Hydrographic and geophysical kit depreciates fast on paper but holds genuine secondary value. Dockstr prices against current OEM and brings it direct to a pool of over 400 survey contractors globally.
In detail
How this segment is brokered
What you can broker through this desk
Hydrographic sensors: multibeam echo sounders, single-beam systems, motion reference units, INS and USBL.
Geophysical kit; side-scan sonars, sub-bottom profilers, magnetometers and seismic systems for site investigation, route survey and UXO work.
AUVs and survey platforms; small and mid-class autonomous systems from manufacturer trade-ins and operator divestments. Larger work-class AUVs handled on mandate.
Complete survey spreads; sensors, processing, deployment hardware and spares. Handled case by case; submit scope to discuss.
Multibeam package, vessel-fit ready.
Why survey kit moves in the secondary market
Survey contractors rotate fleets regularly. A multibeam or side-scan that no longer fits one contractor’s depth operations or vessel fit is often the right spec for another.
Demand is strongest in multibeam, towed side-scan and sub-bottom systems; driven by ongoing wind site investigation, cable route survey and infrastructure inspection backlogs.
Towed side-scan, mid-water route-survey flow.
Calibration, integration and what buyers ask for
Buyers expect the calibration history, last factory service, mounting and integration data, and any vessel-specific patch test records. We assemble this into the data pack before going to market.
On AUV sales, we also include navigation accuracy benchmarks, battery life curves and recent mission logs where available.
USBL transceiver, integration data packaged with the listing.
Scope
Typical brokerage scope
01
Multibeam echo sounder with INS and motion reference unit
02
Towed side-scan sonar with topside and winch
03
Sub-bottom profiler; chirp or pinger, with topside
04
USBL positioning system with transceiver and beacons
05
AUV with payload sensors, charger and shipping container
FAQ
Common questions
Do you broker AUVs?
Yes. Small and mid-class AUVs are an active segment. Work-class and military-grade AUVs are handled on mandate and typically off-market.
What about seismic streamers and source arrays?
Handled on mandate. These are large, logistics-heavy assets and we approach the specific contractor pool directly.
Are calibration certificates always included?
Where the seller holds them; most listings include last calibration. Re-calibration before delivery can be arranged as part of the sale.
Do you sell to academic and research buyers?
Yes. Ocean science institutes are an active buyer segment, particularly for compact AUVs and multibeam systems.
Do you cover land surveying or hydro-dipping equipment?
No. This desk covers hydrographic, geophysical and bathymetric survey equipment for marine and offshore use only. Land survey and dipping kit are out of scope.
What survey sensor brands do you typically see in stock?
We see Kongsberg, EdgeTech, R2Sonic, Sonardyne, iXBlue, Teledyne and Reson regularly; specific availability rotates week to week.
Can you assemble a complete vessel-fit survey spread?
Yes. New-build or retrofit vessel fit-outs are a regular scope; multibeam, INS, USBL, MRU and deployment hardware sourced against the integration design.
Buy-side or sell-side?
Submit your requirement; our brokers will engage the market on your behalf.