Reson SeaBat 7125 Multibeam Echosounder

Available as:
  • Rental
  • Sale (ex rental)

Reson SeaBat 7125 Multibeam Echosounder - Available for rental, hire and ex-rental purchase from Ashtead Technology.

The new generation SeaBat 7125 builds on the field experience and feedback from many users around the world and brings unparalleled resolution and installation flexibility. The system is a 6000m depth rated system for either ROV, AUV or vessel mount use. Each of these configurations utilise the same transducer set and provide identical high performance, superlative data quality, features and ease of use over a depth range from 0.5m to 500m. Special emphasis has been put on maximizing operational efficiency and features such as variable swath width and roll stabilisation combined with a high ping rate and excellent data quality.

For deep-water use the ROV version of the SeaBat 7125 has a 6000m depth rating and includes a titanium interface bottle. The system performance and feature set is identical to the other members of the 7125 family thus providing commonality and ease of use.

Key features

  • Advanced diagnostics
  • Compliance with IHO SP44Ed5 over entire depth range
  • Dual frequency range, 200 or 400kHz, provides seamless coverage from 0.5 to 500m depth
  • High ping rate allows highspeed operations without compromising data density
  • Real-time roll stabilisation maximizing usable swath
  • Up to 512 beams with equi-distant or equi-angle footprints providing extremely high density

Technical specifications

Frequency200 and 400 kHz
Along-track transmit beamwidth2.2° (± 0.5°) at 200 kHz / 1° (± 0.2°) at 400 kHz
Across-track receive beamwidth1.1° (± 0.05°) at 200 kHz / 0.54° (± 0.03°) at 400 kHz
Max ping rate50 Hz (± 1 Hz)
Pulse length33 µsec to 300 µsec
Number of beams256EA*/256ED* at 200kHz 256EA*, 512EA*, 512ED* at 400kHz
Max swath angle140°
Depth resolution6mm
Data outputBathymetry, sidescan & snippets 7K data format Gbit Ethernet
Power requirement48V DC(±10%) 110W max
Transducer cable length3m standard, 10m optional
LCU to processor cable length25m standard, 6m optional, 5m pigtail
System depth rating6000m
Temperature operating0° to +40° C
Temperature storage-30° to +55°C
ComponentsEM 7200 Receiver, TC2160 400kHz Projector, TC2163 200kHz Projector, 7-L Link Control Unit, 7-P sonar Processor Unit with monitor, Keyboard a


ICPU frame172mm x 166mm x 497mm6.7 x 6.5" x 19.5""10kg (air)22lb
TC2163 200 kHz projector115mm x 100mm x 280mm4.5 x 3.9" x 11""7.5kg (air), 5kg (water)16.5lb (air), 11lb (water)
EM7200 200/400 kHz receiver102mm x 495mm x 131mm4 x 19.5" x 5.1""10.6kg (air), 5.5kg (water)23.4lb (air), 12.1lb (water)
LCU bottle530mm x ÿ17420 x ÿ6.8""15.7kg (air), 5.2kg (water)34.6lb (air), 11.5lb (water)