Marine Electronics

Sail safer, view your marine data on your chartplotter or wireless device. AIS Receivers, Transponders, AIS, GPS and NMEA multiplexers, Seatalk and N2K Converters.

Voyage Data Recorder (VDR)

Quark-elec’s Voyage Data Recorders (VDR) log vital vessel data to the internal memory, and upload the data to the Quark Cloud server as long as there is an internet connection to the vessel. Whether the vessel’s internet connection is via a marina WiFi, satellite connection, GSM, cell phone modem, or any other type of internet connection, you will have access to the vessel from anywhere in the world.

The online backup function allows boat owners to download the tracking information and data from home, share the position with friends and family, or monitor environmental conditions remotely. Quark Cloud also allows a trained technician to be able to directly access the boat’s data log and perform any diagnostic or analytical work accordingly. All of which can be performed from a safe and remote place.

Whatever your need, Quark Cloud provides you with a seamless connection to your vessel for peace of mind and convenient access remotely, but don’t worry, nobody can view the data without prior authorisation, so you can rest assured knowing that your information is kept private, and you decide who to share it with.

Quark-elec now have two products supported by Quark Cloud; the A036 for boats that have deployed the new NMEA 2000 network system, and the A035 which is perfect for those using NMEA 0183 protocol boats.

QK-A035 NMEA 0183 4×4 multiplexer with SeaTalk converter + integrated voyage data recorder

‘Providing a highly customisable network to work as an NMEA 0183 hub on my boat. Automatic data recording that can be uploaded to the Quark Cloud to offer tracking, data backup, sharing and export.’


  • Multiplexes up to 4 NMEA 0183 inputs and SeaTalk¹ devices
  • 4 independent NMEA 0183 outputs, each capable of driving the combined data from the inputs
  • Advanced filtering and routing functions for input NMEA sentences
  • Integrated VDR

QK-A036 NMEA 2000 to WiFi/USB Bi-directional Converter With Integrated Voyage Data Recorder

‘Records all NMEA 2000 network activity for system diagnosis, performance analysis, and accident investigation, all in an effort to reduce operating costs and improve safety. Online backup allows for remote access or sharing’.


NMEA 2000 <—> WiFi and USB gateway
Integrated SD card for voyage data logging

  • Bi-directional NMEA 2000, WiFi and USB converter
  • Recorded data in selectable format: NMEA 0183 or PCDIN(NMEA 2000 raw data)
  • Converts the most common NMEA 2000 PGNs to / from NMEA 0183 sentences
  • Allow diagnosis and performance analysis from a safe and remote place
  • Galvanic opto-isolation on NMEA 2000 CAN bus connection
  • Access to Quark-cloud free in the first 24 months
  • Circular buffer preserves latest recorded data while oldest data is overwritten when card is full
  • WiFi supports Ad-hoc, station and standby mode