SI-TEX Marine Electronics

SI-TEX Marine Electronics For over 50 years, SI‑TEX Marine Electronics has been dedicated to making every voyage safer, smarter, and more reliable.

We design and deliver rugged, high‑performance navigation and communication solutions that stand up to real‑world conditions! The first product SI-TEX introduced back in 1975 was the HE-31 Chart Recorder Fish Finder. At that time it was considered to be the number 1 product of its type in the Marine Electronics business. Over the years SI-TEX introduced dozens of innovative Fish Finder products, including the very first Color Video Fish Finding Unit the HE-705. The SI-TEX Fish Finder Products have evolved over the years, we now offer a full range of Fish Finders from the 6" 600 watt CVS-126 all the way up to 3kW Commercial Fish Finders used by many Commercial fishing boats throughout North America. On top of that SI-TEX was the leader in Loran C Navigator technologies introducing the very first compact reasonably priced high performance Loran C receiver the 757C. Loran C systems are no longer used but today SI-TEX offers a full range of GPS Navigators and Color GPS Chart Plotters. In 1984 SI-TEX was one of the first companies to introduce a compact Raster Scan Radar unit the T-100, and believe it or not we still occasionally have customers call our service department for assistance in repairing a T-100 Radar because after 36 years of use it just stopped working. Today SI-TEX offers a full range of High Performance Radar products starting with the 7" touch Screen 4kW T-760 Radar all the way up to 19" 25kW Radars with 9ft Open Arrays used by Commercial Ships of all types and sizes

In 1994 SI-TEX Introduced the SP-70 Autopilot System which is a very rugged Commercial Autopilot System that became very popular with the Commercial Fishing Fleets in the Gulf of Mexico. The SP-70 Autopilot is still a current product today and continues to be a popular Autopilot used by Commercial Fishing boats. besides the SP-70 Autopilot, SI-TEX has a full range of Autopilot Systems ranging from the Compact SP-120 Autopilot all the way up to the SP-38 Commercial Autopilot System for vessels up to 100ft or more. So as you can see even though SI-TEX Marine Electronics may not be a household name we have a pedigree in the Marine Electronics Business 2nd to None. Our Customer Service and Support is considered by many to be the best in the business. So when you are looking for Quality Marine Electronics for your boat make sure to check out SI-TEX Marine Electronics.

Our newest Echonautics Transducer for Commercial Navigation Applications. (Tugs, River Towboats & Barges)
09/23/2026

Our newest Echonautics Transducer for Commercial Navigation Applications. (Tugs, River Towboats & Barges)

Stop by the SI-TEX Booths at the 2026 National Marine Electronics Association (NMEA) Conference in Dallas, TX and the 20...
09/18/2026

Stop by the SI-TEX Booths at the 2026 National Marine Electronics Association (NMEA) Conference in Dallas, TX and the 2026 IBEX Expo in Tampa, FL

Good News we have been adding transducers to our Echonautics line of transducers on a regular basis this year. Our late...
08/28/2026

Good News we have been adding transducers to our Echonautics line of transducers on a regular basis this year. Our latest introduction is our New TM70 Transom Mount 600-watt transducer. It has a Hydrodynamic shape to allow it to cut thru the water with very little turbulence and is built on a heavy-duty stainless-steel mount. The TM70 is available in 600 watt traditional 50/200kHz versions as well as Medium and High CHIRP versions. The TM70 comes standard with a molded 8 pin CX connector for Sitex and Koden sounders and we have mix & match cables for all Garmin, Lowrance, and Simrad Sounders, which allows the TM70 to easily plug and play with mnay companies sounders.

The MSRP starts at $249.00

Just received pictures of some of our newest Tug Radar installs today :)
07/22/2026

Just received pictures of some of our newest Tug Radar installs today :)

Panbo Reviews our Sirius 12 Stabilized Binoculars!
04/22/2026

Panbo Reviews our Sirius 12 Stabilized Binoculars!

Within a few months of leaving to travel America's Great Loop, I decided there were two things my boat was sorely lacking. The first was a set of wireless headsets or marriage savers -- rarely has a product been so accurately named. The second tool I found myself lacking was a pair of stabilized bin...

If your looking for a complete standalone Radar system that won't break the bank the SI-TEX T-760 is your ticket. Unlik...
04/21/2026

If your looking for a complete standalone Radar system that won't break the bank the SI-TEX T-760 is your ticket. Unlike many of our competitors radars that once you purchase the Radar antenna you still need to buy one of their Multi-Function Displays. The T-760 is a complete package with NO need to purchase a separate display!

Boating Season Is Here — Don’t Get Stuck Waiting on a TransducerIt’s that time of year again. Boaters are getting ready ...
04/15/2026

Boating Season Is Here — Don’t Get Stuck Waiting on a Transducer
It’s that time of year again. Boaters are getting ready to splash, schedules are tight, and nobody wants to delay launch day because a transducer is suddenly out of stock everywhere.

Over the past few weeks we’ve had multiple boaters call us in a panic — the exact transducer they need is back‑ordered, discontinued, or simply unavailable.

Never fear. We’ve got you covered.

Our new Echonautics line of high‑quality transducers is in stock right now and ready to ship. These units are engineered for top‑tier performance and are fully compatible with:

SI‑TEX
Koden
Garmin
Lowrance

Simrad

Whether you’re replacing a failed thru‑hull, upgrading to CHIRP, or adding a new transducer before the boat hits the water, Echonautics has a drop‑in solution ready today.

Boating Season Is Here — Don’t Get Stuck Waiting on a Transducer!It’s that time of year again. Boaters are getting ready...
04/15/2026

Boating Season Is Here — Don’t Get Stuck Waiting on a Transducer!

It’s that time of year again. Boaters are getting ready to splash, schedules are tight, and nobody wants to delay launch day because a transducer is suddenly out of stock everywhere.

Over the past few weeks we’ve had multiple boaters call us in a panic — the exact transducer they need is back‑ordered, discontinued, or simply unavailable.

Never fear. We’ve got you covered.

Our new Echonautics line of high‑quality transducers is in stock right now and ready to ship. These units are engineered for top‑tier performance and are fully compatible with:

SI‑TEX
Koden
Garmin
Lowrance
Simrad

Whether you’re replacing a failed thru‑hull, upgrading to CHIRP, or adding a new transducer before the boat hits the water, Echonautics has a drop‑in solution ready today.

04/06/2026

Address

25 Enterprise Zone Drive
Riverhead, NY
11901

Opening Hours

Monday 9am - 5pm
Tuesday 9am - 5pm
Wednesday 9am - 5pm
Thursday 9am - 5pm
Friday 9am - 5pm

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