Trietech Gemini 720ik

The Gemini 720ik is a real-time, high-frequency multibeam imaging sonar. Utilising Tritech’s advanced processing electronics, at 1m range the sonar offers a world-class 97Hz update rate to produce high-quality, video-like imagery. This compact multibeam imaging sonar has been specifically developed for shallow water operations; with low power consumption and Compressed High-Intensity Radar Pulse (CHIRP) processing for greater definition at long range.


The Gemini 720ik is a shallow rated version of the industry recognised Gemini 720is, offering the same imaging performance as the Gemini 720is but in a more compact package. The smaller and lighter Gemini 720ik is ideal for small ROVs and shallow water operation where size and weight is critically important.


  • Near field focusing
  • 4mm / 0.2in range resolution
  • Clear wide angle field of view
  • Suitable for low visibility environments
  • Easier interpretation of sonar imagery


  • 720kHz operating frequency
  • CHIRP processing
  • Wide 120° field of view
  • Real-time updates for video like imagery
  • Integrated velocimeter for accurate ranging

A real-time, high frequency imaging solution, the Gemini 720ik operates at 720kHz and combined with Tritech’s advanced processing electronics, it produces images of outstanding clarity, benefitting from 512 beams which results in a 0.25° effective angular resolution. The Gemini 720ik has been developed specifically for shallow water operations with low power consumption and Compressed High Intensity Radar Pulse (CHIRP) processing for greater definition at long range. The product also has an integrated Velocity of Sound (VoS) sensor to ensure extremely accurate imaging and measurement.

The Gemini 720ik is supplied with Genesis, Tritech’s data acquisition and logging software, which offers users the ability to operate a number of Tritech sensors using this single software program.

Technical information

Key Specification

  • Operating frequency: 720kHz
  • Angular resolution: 1.0° acoustic, 0.25° effective
  • Supply voltage: 19V to 74V DC
  • Power requirement: 16W – 27W (range dependent)
  • Main port protocol: Ethernet
  • Depth rating: 350m / 1148ft
  • Weight in air: 1.40kg / 3.08lbs
  • Weight in water: 0.43kg / 0.96lbs

Acoustic specifications

  • Operating frequency: 720kHz
  • Angular resolution: 1.0° acoustic, 0.25° effective
  • Range: 0.1m – 120m / 4in – 394ft
  • Number of beams: 512
  • Horizontal beam width: 120°
  • Vertical beam width: 20°
  • Range resolution: 4mm / 0.2in
  • Update rate: 5 – 97Hz (range dependent)
  • Mode of operation: CHIRP or CW
  • Speed of Sound: Integrated VoS sensor


  • Supply voltage 19V to 74V DC
  • Power requirement 16W – 27W (range dependent)
  • Main port protocol Ethernet Auxiliary port protocol RS232, TTL in, pass-through power (2.5A max)
  • Connector type MAIN port: Impulse MKS(W)-307-FCR / AUX port: Impulse MKS(W)-307-FCR

Physical specification

  • Depth rating 350m / 1148ft
  • Weight in air 1.40kg / 3.08lbs
  • Weight in water 0.43kg / 0.96lbs
  • Temperature rating (operating) -10°C to 35°C / 14°F to 95°F
  • Temperature rating (storage) -20°C to 50°C / 4°F to 122°F

Software requirements

  • Included Genesis
  • Processor 2GHz (minimum) / 3GHz Quad Core (recommended)
  • Graphics 3D hardware accelerated graphics card
  • SDK Available on request
  • Operating System Microsoft Windows 7, 10




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