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Lars Thrane LT-1000 NRU Electronic Compass with built-in GPS

Want a quality Electronic Compass with built in GPS, well this product will certainly do the job

Key Features:

  • Navigation Reference Unit with 12 precision sensors
  • True heading, magnetic heading, roll, pitch, position, ground speed, course over ground, air pressure and temperature
  • 72-ch. GNSS (GPS/GLONASS/BeiDou) satellite receiver with SBAS correction
  • Simultaneously NMEA 0183 and NMEA 2000
  • Easy configurable NMEA 2000 termination resistor (open or terminated)
  • Easy configurable NMEA 0183 data rate (4800 or 38400 baud)
  • Each unit is factory calibrated and functional tested over temperature prior to shipment
  • Worldwide maritime certification

The LT-1000 Navigation Reference Unit (NRU) is a maritime navigation product from Lars Thrane A/S. The LT-1000 NRU is designed for the leisure as well as the professional maritime markets. The LT-1000 unit meets all standards and certification requirements needed for worldwide maritime navigation equipment.


The LT-1000 NRU is a small, compact, and very advanced unit with 12 precision sensors (magnetometers, gyros, accelerometers, barometer, thermometer, and GNSS). With the use of sensor-fusion and Kalman filtering, the LT-1000 NRU outputs: true heading, roll, pitch, position, ground speed, course over ground, air pressure, and temperature in real-time, with high precision and resolution. The LT-1000 NRU includes advanced technologies such as:

  • Kalman filtering
  • Calculation of magnetic variation based on the World Magnetic Model (WMM)
  • Compensation of soft and hard iron (deviation)
  • Built-in magnetometer calibration algorithm
  • Receive and track multiple satellite systems (GPS, GPS & GLONASS, or GPS & BeiDou)
  • Support for Satellite-Based Augmentation System (SBAS): EGNOS, WAAS and MSAS

The LT-1000 NRU makes use of the latest technology within GNSS receivers, with market leading acquisition and tracking performance.

The LT-1000 NRU is designed and built for the demanding and rough environment at sea and with an operational temperature range from -40?C to +55?C (-40?F to +131?F).

Installation & Navigation

The LT-1000 Navigation Reference Unit is easy to mount on a 1” pole (optional installation: roof mount) with a single cable supporting NMEA 0183, NMEA 2000, and power. The built-in magnetometer calibration algorithm will quickly compensate for heading deviation, and the LT-1000 NRU will output reliable navigation data. An external PC installation and service software is available for optional configuration and maintenance of the LT-1000 NRU.

More than 40 years of experience have been put into the design and construction of the advanced LT-1000 NRU, with an exceptional performance and specification level.


  • Certification & standards: CE, IEC 60945, IEC 60950, EN 300440-2, FCC, IC, RoHS, NMEA 0183, NMEA 2000
  • Dimensions, with pole mount: 151.4 x 81.65 x 128.0 mm (5.96 x 3.21 x 5.04 in.)
  • Weight, with pole mount: 240 g (0.53 lbs)
  • Temperature (ambient), operational: -40°C to +55°C (-40°F to +131°F)
  • Temperature (ambient), storage: -40°C to +85°C (-40°F to +185°F)
  • Waterproof: IP46 / Humidity: 95% non-condensing @ 40°C
  • Communication Interface: 8-pin female connector for NMEA 0183, NMEA 2000 and power
  • Input power: 9-40 VDC
  • Power consumption: < 1W
  • Load Equivalent Number (LEN): 2
  • Compass safe distance: 0.3 m (1 ft)
Whats in the Box
  • LT-1000 NRU
  • Pole & Roof Mount
  • 10m Cable Multi 8-pin Simple-Cut (M)
  • Screw-in Conn. NMEA 2000 Micro-C (M)
  • Quick Installation Guide
  • Safety Instructions Sheet
  • Unit Test Sheet


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