Comar T200B Class B AIS Transponder

Your Price: $689.00
Retail Price:$719.00
Your Savings:$30.00(4%)
Part Number:CS-T200B

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NOTE: The is a special order item. Lead time is 2 weeks for delivery.

OVERVIEW – T200B AIS Transponder

The T200B is a compact and rugged AIS Transponder, designed for the demands of the small commercial boat, fishing boat and leisure markets. It meets the Class ‘B’ standard that allows vessels that are not required to fit Class ‘A’ units to voluntarily fit an AIS Transponder. When connected to an external VHF antenna and a GPS antenna (not supplied), the T200B will transmit its own vessel position and data and receive information from other AIS vessels, shore stations and navigational aids within VHF range.

The unit is initially programmed by the dealer (if sold in the USA) or the end user with the supplied software over a USB interface. The T200B is compatible with a range of computer-based navigation programs and chart plotters that can accept AIS data sentences over a NMEA 0183 or NMEA 2000 connection.

Quick & Easy Online Form

Free Class B AIS Programming

FCC regulations require Class B AIS units to be programmed with MMSI and vessel information before shipping to US addresses. Milltech Marine provides this service free of charge.

Common Questions About MMSI

To make it more convenient for you to provide vessel information, we have prepared this quick and easy online form. Please complete and submit at time of order.
We are required to have proof of valid MMSI, so please also send a copy of the issuing document.
If you do not have a copy of your MMSI assignment, contact the issuing authority or organization. To search the FCC licensing database, click here. For BoatUS information, click here.
Go here if you do not have an FCC Ships Station License and MMSI and wish to obtain one.

NOTE: This product is also available with an integrated VHF antenna splitter. Choose the correct model above. Also note, the CSB-200 models do not ship with a GPS antenna. Please select a GPS antenna in the "Accessories" section below.


  • NMEA 0183 and NMEA 2000 compatible
  • Automatic transmission of vessels own position, speed and heading to other vessels within VHF range
  • A method of monitoring the position, speed and heading of other AIS vessels within VHF range
  • The ability to plot the progress, changes in heading and speed of other AIS vessels on a PC or Chart Plotter
  • Transmitter off facility to conserve power, or for covert use
  • Small commercial boat, fishing boat and leisure markets.
  • Meets the Class ‘B’ international standard that allows vessels that are not required to fit Class ‘A’ transponders to voluntarily (or otherwise) fit an AIS transponder

Formed over 25 years ago, Comar Systems Ltd manufacture a range of Marine Automatic Identification (AIS) products. Comar Systems is the world leader in Automatic ship Identification. With a selection of Class A and Class B Transponders Comar is at the forefront of this cutting edge technology. Comar Systems also manufactures AIS receivers, splitters and antenna to suit all applications from large marine traffic and intelligence information providers to the work boat, fishing and private yacht industries. With a worldwide network of distributors and a manufacturing facility in the UK Comar is the go - to company for AIS equipment worldwide. In 2015 Comar systems was acquired by the Katon Ingram group and joined its sister company, Marine Data Systems. This merger has gives Comar the advantage of an established R&D department with innovative design and engineering solutions and an enhanced manufacturing base with ISO 90001 approval and the testing facilities associated with this quality.Latterly Comar systems have developed a range of bespoke land based intelligent receivers for global monitoring, security, environmental and asset protection. Our equipment is being used for such diverse applications as Port monitoring, Wind farms protection, large Marine and terminal developments. Detecting and policing illegal fishing, critical pipe line location and strike avoidance as well as environmental conservation and wildlife control.

Milltech Marine is a distributor for Comar in the US and Canada.


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