RockBlock Plus
RockBlock Plus

RockFLEET Marine-Grade Tracking and Messaging Device

The RockFLEET Tracker is a truly global tracking device designed for permanent use aboard marine vessels and land vehicles. It has an optional LTE Narrowband unit, which allows it to use terrestrial mobile phone networks when possible, automatically switching to the global Iridium satellite network when LTE Narrowband is not available.

It’s designed for permanent installation on ships, yachts, vehicles, and other assets. It’s waterproof, ruggedized, and has a variety of mounting options to suit your needs.

With Bluetooth and additional API / communications ability, it offers easy integration with modern cell / tablet applications for catch reporting etc.

Key Features

  • Least-cost routing option using LTE Narrowband where possible
  • Small form factor, with multiple mounting options
  • Can be covertly mounted and positioned
  • Submersible to 3m (9.8ft) for 24 hours
  • Proven to operate at -22F and 140F
  • Designed for permanent outdoor installation
  • Will run on 9-30v external power supply back-up internal battery, for up to two weeks’ use
  • Over-the-air reconfiguration of key parameters
  • Truly global operation using the Iridium satellite network
  • Bluetooth LE for advanced messaging (requires Bluetooth LE-compatible phone/tablet)
  • Alerts when external power lost, or when route switching
  • Complex geofencing abilities

Tech Specifications

  • Dimensions: 4.7″ diameter x 1.96″ height | 120mm x 50mm
  • Storage Temperature: -40 to 185°F
  • Operating Temperature: -22 to 140°F
  • Operating Environment: <75% Relative Humidity
  • Sealed against dust and water ingression to IP68
  • Power Input Voltage: DC (9-30v)
  • Power Consumption: 500mA max, plus very low current sleep mode (<30mA)
  • Uses the Iridium 9602 Short Burst Transceiver
  • Uses the Maxtena 1621 Patch Antenna
  • Available with LTE Narrowband, Serial Communications and Bluetooth LE
  • Cable Options: 3m 9-30c (can be varied)


The tracker will wake up on a regular basis, obtain a position using the GPS satellite network, and then transmit that position back to Ground Control HQ using either LTE Narrowband/GPRS or the Iridium satellite network. We visualize the positions on an easy-to-use web-based viewer.


The RockFLEET also allows short messages (like SMS, social media updates, and short emails) to be sent using a paired Bluetooth device, such as a smartphone, and the Messenger app. This allows for full two-way communication wherever you are, even when out of mobile network range.


The combination of LTE Narrowband and Iridium provides a cost-effective and truly global method of tracking and communicating with your assets wherever they may be.


download.svgRockFleet Datasheet