Gemini 1200ik

Introducing the Gemini 1200ik – a dual-frequency multibeam imaging sonar designed by Tritech to deliver exceptional performance in various applications.


Energy Underwater Vehicles Defence Diving Marine Science & Aquaculture

The Gemini 1200ik multibeam imaging sonar is a powerful addition to the popular Gemini range. The multibeam imaging sonar offers two operational frequencies with the ability to switch between low and high frequency dependant on the user’s requirement. The 720kHz low frequency setting is designed for target identification and obstacle avoidance at long range, whilst the 1200kHz high frequency setting offers extremely detailed multibeam images, ideal for inspection at close range. Switching frequencies can be set to automatically switch over at a specific range or done manually.

Unique to the Gemini 1200ik is the ability to maintain a 120° field of view across both frequencies: something not previously seen in any of the Gemini Multibeam imaging sonars and ensuring the target remains in view when operating at high frequency and at short range.

Significant engineering development has resulted in this latest Gemini imaging sonar offering an impressive 2.4mm range resolution as well as an effective angular resolution of only 0.12°.

Used in conjunction with the Diver Mounted Display, it also provides divers with real-time imaging in low-visibility conditions via a high-resolution diver display.

The Gemini 1200ik is now available with a 350m or 1000m depth rating.


Manuals, Datasheets, Software, etc.

Gemini 1200ik (PDF 790 KB)


Genesis v1.7.4.108 (MSI 162 MB)


Gemini Sonars Comparison (PDF 717 KB)
Gemini Pole Mount Options (PDF 628 KB)
Product Guide 2023 (PDF 3 MB)


Gemini 1200ik (PDF 2 MB)

STEP Files

Gemini 720ik/1200ik – No Connectors (ZIP 3 MB)

Frequently Asked Questions (FAQs)

1. What is the difference between the Gemini 720ik and the Gemini 1200ik?
The Gemini 1200ik is a dual-frequency version of the Gemini 720ik.  The operating frequencies are 720kHz and 1200kHz for close inspection.
2. Where can I find the calibration frequency for Tritech products?
The calibration frequency guidance document can be found under the technical notices in the Resources page. To go directly to them click on the link “Technical Notices”

Alternatively, the document can be accessed here: Calibration Frequency Guidance

Related Products

Micron Gemini

With greatly improved image quality, a 90 horizontal field of view, and a 50m range, the Micron Gemini offers cost-effective obstacle avoidance and navigation for small ROVs and AUVs.


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.


Gemini 720is

Experience the industry-leading Gemini 720is multibeam imaging sonar, designed for WROVs, ROVs, and AUVs. This cutting-edge sonar system provides high-definition, real-time sonar images for a wide range of applications.


Diver Mounted Display (DMD)

Enhanced for zero visibility conditions, the Tritech Diver Mounted Display (DMD) system empowers divers with superior navigation capabilities and efficient inspection capabilities.


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