Precision 9 Compass


ComplianceCE under EMC directive 2014/30/EU


N2K PGNs127250, 127251, 127257, 127252
NMEA 20001x NMEA 20000 Micro-C port, 1 LEN


Power Consumption, max.0,4W (N2K Load 1 len)
Supply Voltage12V DC (8-16V DC) via NMEA2000


Operating Temperature Range-25 to + 65ºC (-13 to + 149ºF)
Storage Temperature Range-30 to + 70ºC (-22 to + 158ºF)
Waterproof ratingIPx7

Heading Sensor

Accuracy+/-2deg. After calibration
Data AvailableMagnetic heading, rate of turn, pitch/roll, heave
TypeSolid state, rate stabilized


Compass Safe Distance - Metric, imperial500mm (1,7")


Dimensions (W x H x D)36 x 119 x 119mm (1,42 x 4,69 x 4,69")
Mounting TypeBracket, Bulkhead
Weight0,165kg + 0,130kg(bracket)


Warranty Period2 Years



Compliance EMC directive 2014/30/EU


Supply voltage 9-31.2 V 
DCPower consumption - Max 500 W
Power consumption - Typical As required to drive rudderactuator. See pump/motorpower ratings
Recommended fuse rating 20 A


Operating temperature -25°C to +55°C (-13°F to 131°F)
Storage temperature -30°C to +70°C (-22°F to 158°F)
Waterproof rating IPx5
Humidity 100%
Shock and vibration Acc to EN60945


NMEA 2000 1 Micro-C port, 1 LEN
Drive 12/24 V DC, min 10 mA, max 3 A
Rudder Feedback Variable voltage/resistive 0‐5 V


Weight 0.6 kg (1.3 lbs)
Compass Safe Distance 500 mm (20 inches)
Warranty2 years

NAC-2 VRF Core Pack

SKU: 000-13337-001

This pack includes the core components you need to upgrade your boat with a Continuum autopilot system, designed for outboard and sterndrive vessels up to ten metres (35 feet) in length. Just add a drive unit to suit your steering system, and choose a B&G or Simrad autopilot controller or multifunction display.

Key Features

  • Core autopilot system components – just add a drive unit and controller
  • Ideal for rudder-steered boats up to 10 metres (35 feet) in length
  • Compatible with low-current drive pumps, mechanical drives, hydraulic linear drives, and solenoid valves
  • Take control with the B&G Triton2 controller, Triton2 display, Simrad AP44 Autopilot Controller, IS42 display and OP12 keypad, or a networked multifunction display
  • Easy setup with automatic tuning and compass calibration
  • Plug-and-play connectors for easy installation

Product details

NAC-2 Autopilot Core Pack:

Comprising of the low-current NAC-2 autopilot computer, Precision-9 compass and NMEA2000 backbone kit. Ideal for smaller vessels, designed to run small hydraulic drives and mechanical drives for vessels up to 10 meters (33 feet) in length. NAC-2 Autopilot Computer The NAC-2 Autopilot Computer is the brains behind your autopilot system. NAC-2 contains the control algorithms developed to helm a yacht across a broad range of weather conditions and sea-states, alongside the electronics needed to operate a hydraulic or mechanical drive unit, while also interfacing with other components including heading sensors and rudder feedback units. The NAC-2 was designed for boats up to 10 metres (33 feet) in length and is suitable for low-current hydraulic drives, mechanical drives, or solenoid valves with a current rating of 8 Amps continuous (16 Amps peak). 

Precision-9 Compass 

The Precision-9 Compass supplies heading and rate-of-turn information to Simrad, B&G and Lowrance autopilot, radar and navigation systems. Based on reliable solid-state sensor technology, this compact compass offers easy installation aboard any vessel. Heading, Rate Of Turn (ROT), roll, and pitch output over NMEA 2000® Heading and ROT calculated using sensor data from 9 axes of rotation and motion Accurate and reliable solid-state sensor technology Heading accuracy of ±2° after calibration Easily adjustable mounting bracket allows bulkhead or up-mast installation IPX7 waterproof. Best in class. Simple installation with a single NMEA 2000® connection

Easy Installation and Setup

Virtual Rudder Feedback (VRF) technology eliminates the need to install a mechanical rudder feedback unit aboard outboard and sterndrive (inboard/outboard) boats. VRF technology greatly simplifies autopilot installation, while delivering uncompromising Continuum steering performance. Plug-and-play connectors minimise the need for manual wiring and facilitate easy installation. Industry-standard NMEA 2000® networking offers reliable connectivity to sensors, autopilot controllers, and multifunction displays located anywhere on board. Auto-tuning simplifies setup and ensures optimal steering performance, while automatic compass calibration continuously improves heading accuracy as you travel.

What’s in the box?

  • NAC-2 Course Computer
  • Precision-9 Compass
  • NMEA 2000 Backbone kit
  • Documentation

Minimum product requirements

Requires a hydraulic steering pump or mechanical drive unit, and a compatible autopilot controller or networked multifunction display.


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NAC-2 VRF Core Pack - Medium Capacity

  • $2,175.00

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Tags: b&g, simrad, electronics, autopilot, compass, nmea, 2000, precision, 9, nac-2, micro-c, backbone, computer, kit, pack, sensor, vrf, virtual, rudder, feedback