Technoton Crocodile Contactless CAN j1939 reader

CANCrocodile is designed for safe data reading from vehicle CAN bus.


CANCrocodile is designed for safe data reading from vehicle CAN bus. Contactless reader is used within vehicle telematics and GPS tracking systems for receiving various parameters of vehicle operation from CANbus: speed, RPM, oil pressure & temperature, fuel volume & consumption, etc.

Data reading occurs without electrical connection and without damaging CAN wires. CANCrocodile works in “listen” mode only, i.e. it does not change original J1939 messages and does not send any signals to CANbus.




Technoton was established in April 2000, at the early stage of emerging market of automotive telematics and GPS tracking systems. We started with development and manufacture of GPS tracking devices, fuel level sensors and fuel flow meters. Soon we focused on solving tasks of fuel consumption measurement and fuel usage monitoring, safe CANbus data reading and analysis.

Technoton’s technical team includes highly-qualified engineers and developers, who have wide expertise in micro controller units, mechanical engineering, computer science, programming and diagnosis.


  • Safe connection to CAN bus
  • Strong fixation of CAN bus wires
  • LED indication of operation modes


  • Bus Reader
  • Tractor Reader


  • Level of message losses at 250Kbps, %, not more : 1
  • Compatibility :
    SAE J1939
    CAN Open
    NMEA 2000
  • Nominal supply voltage, V :
    5 – on request
    12/24 A++ (low current consumption) – on request
  • Current consumption, mA :
    for “5V” version
    for “12/24V” version
    for “12/24 A++” version 300
  • Cable length, m :
    2 – on request
  • Cable connector :
    bare wires
    Special connector (specify when ordering)

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