Reson 8125-H Multibeam Echosounder

Available as:
  • Rental
  • Sale (ex rental)

Reson 8125-H Multibeam Echosounder - Available for rental, hire and ex-rental purchase from Ashtead Technology.

The new SeaBat 8125-H combines the 8125’s celebrated sonar head with an advanced data processor. Using 256 dynamically focused receive beams, the SeaBat 8125-H cuts a 120-degree swath across the seafloor. The result? Sea-floor detection is reliable, depth resolution is a crisp 6mm, and you can view backscatter intensity in real time on the sonar display.

The 8125-H’s advanced autopilot makes sure you cut the right swath first time every time, so you can focus on your survey data. And roll stabilisation enables you to complete your survey in inclement weather with no loss of accuracy.

For ROV deployment, you can optimise the 8125-H’s high-speed data uplink with a fibre-optic interface.

Key features

  • Replacing the processor and acquisition PC with a single highly integrated super computer
  • Performance highly improved
  • Improved raw data display and water column
  • Real-time roll stabilization
  • Uncertainty output
  • Variable swath
  • Autopilot

Technical specifications

Frequency455 kHz
Beam DensityUp to 512 beams in selectable modes optimises operations for any survey type
Swath120° swath angle
Easy UpgradeFast, simple, economical upgrade
New ProcessorNew sonar processor only, no changes to existing 8125 head or cables
PerformanceImproved raw data display and water column
Along-Track Transmit Beam Width1.0°
Across-Track Receive Beam Width0.5° (at nadir)
Max Ping Rate40Hz
Pulse Length10 μsec to 300 μsec
Number of BeamsUp to 512 beams in selectable modes
Max Swath Angle120°
Depth Resolution6 mm
Data InterfaceBathymetry, sidescan & snippets, 7K data format, Gigabit Ethernet
Power Requirement110/220 VAC, 50/60 Hz, 500W max
Head to Processor Cable Length25m
System Depth Rating (Aluminium)400m
System Depth Rating (Titanium)1500m
Processor Operating: Temperature, Storage0° to + 40° C, -30° to +55° C
Sonar Head Temperature: Operating, Storage-2° to +35° C, -30° to +70° C


Weight40kg (air), 18kg (water)