BT100 SERIESFishing Buoy-tracker

BUOY-Tracker is a purpose designed and certified AIS transponder for marking and locating buoys. It enables you to precisely track, locate and protect your buoys and gear using your existing onboard AIS message which is displayed as a buoy icon on all navigation displays.

BUOY-Tracker is ruggedized for continuous commercial use and powered by its own internal battery which is easily recharged using a charging dock and will operate continuously for 5 days between charges.

NOTE: in order to operate BUOY-Tracker requires a bracket and a charger. Prior to use BUOY-Tracker must be programmed and you will need a Programming Dock to perform this exercise. The Programming Dock can be used to program multiple BUOY-Trackers and also acts as a charger. BUOY-Tracker is used globally in different applications and em-traks accessories allow you to create your own combination of BUOY-Trackers, chargers and brackets suitable for your own individual requirements.


Global next day shipping

Certified Class B AIS Transponder (Transmit Only), Small & lightweight, easy to use and install, internal 5 day rechargable battery, IPx8 ruggedized,
  • Features

    • Globally certified Type 1 AIS Aids to Navigation Transponder
    • Simple to configure and use – automatically switches on when fixed in bracket to buoy
    • Precise location and identity of buoy displayed on your existing navigation chart display in real time using AIS
    • 120 hour operational life between charges – internal battery recharges with supplied charging dock in 5 hours
    • IPx8 ruggedized for continuous long term operation at sea in even the harshest of weather
  • Technical Specification

    Size (h x w) – 370 x 67 mm
    Weight – 355g
    Operating temperature – -25°C to +55°C
    Storage temperature – -25°C to +70°C
    Ingress protection – IPx6 and IPx8


    Battery capacity – 2300mAh
    Battery type – 3.7V Li-Ion rechargeable
    Battery life (default operating conditions) – 120 hours


    AIS standards – IEC 692320-2 Ed. 2
    Product safety standards – EN60950-1 2006 +A11:2009 +A1:2010 +A12:2011 +A2:2013
    Environmental standards – IEC 60945 Ed. 4
    GNSS performance standards – IEC 61108-1 Ed 2.0


    Systems supported – GPS
    Channels – 50
    Internal/external antenna – Internal only
    Time to first fix from cold start – 37s


    VDL access scheme – FATDMA
    Operating frequency – 156.025MHz – 162.025MHz
    Channel bandwidth – 25kHz
    Receivers/transmitters – 1 x transmitter
    AIS transmitter power – 1W (30dBm radiated)


    Buttons – SOS
    Indicators – Status indicator


    Size (H x W x D) – 110mm x 120mm x 78mm
    Weight – 360g
    Power supply – 115V / 240V AC


    Size (H x W x D) – 110mm x 120mm x 78mm
    Weight – 360g
    Power supply – 115V / 240V AC
    PC interface – USB (cable supplied)

  • In The Box

    • 1 x AIS Transceiver
  • Global Support & Warranty Service

    With em-trak you can buy with confidence. If you are unhappy with your new product for any reason, within two days of receipt and subject to the product and packaging being complete and undamaged, you may return it to us for a full refund.


    We are sorry, but we cannot accept the return of any product if you have not advised us in writing within 48 hours of receiving your em-trak product, or if it has been used and or damaged or if any of the package is incomplete. All em-trak products benefit from our three year global warranty.


    In the unlikely event of a problem, please contact our Customer Support department (24/7) at [email protected] and one of our experts will work with you to instantly resolve your issue or arrange the repair or replacement of your em-trak product. The warranty is invalidated if the product has been incorrectly used, damaged or tampered.

  • Manuals & Downloads


Programming Dock BUOY-Tracker

Programming Dock BUOY-Tracker Accessory

Programming dock for configuration. Also can be used as a charger for BT100


Global next day shipping


Charging Dock

Charging Dock Accessory

Charging dock for BUOY-Tracker


Global next day shipping


Mounting bracket

Mounting bracket Accessory

Mounting bracket for BUOY-Tracker


Global next day shipping

Core technology


Core technology continuously developed and proven over many years guarantees you the very best AIS receive and transmit and GPS performance, coupled with the lowest power consumption of any comparable AIS transceiver.



Quality engineered and manufactured with the best components to provide years of continuous, maintenance free operation in even the most extreme environments – impervious and protected against the long-term effects of water, damp, shock, vibration and extreme cold and heat.



Guaranteed connectivity to any chart-plotter and PC/Phone/Tablet/Watch and navigation app. This ensures you are not limited to any display device or navigation application now or in the future and can maximise AIS related functionality such as weather, MOB, anti-collision, anchor safety, vessel tracking and more.  



With features such as FLEXI-FIT bracket, integrated GPS antenna, VHF antenna splitter and unlimited connectivity options such as NMEA2000 & 0183, Bluetooth & Wifi. em-trak AIS transceivers are easy to configure and install on any boat.  



em-trak transceivers are rigorously tested and certified for global regulatory compliance. This includes FCC, USCG, Canada and EU test and certification.


Warranty & support

em-trak transceivers are designed and engineered for a life time of reliable operation in even the most extreme environments. This is supported by our best in class global warranty program with 24/7 customer support