Certus is a rugged GNSS/INS that provides accurate position, velocity, acceleration and orientation under the most demanding conditions. It combines temperature calibrated accelerometers, gyroscopes, magnetometers and a pressure sensor with a dual antenna RTK GNSS receiver. These are coupled in a sophisticated fusion algorithm to deliver accurate and reliable navigation and orientation.

USD 9,200
Evaluation kit. Volume discounts available.

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Certus contains very high performance MEMs inertial sensors. These are put through Advanced Navigation's intensive calibration process to increase their performance further still and provide consistently accurate data over an extended temperature range of -40°C to 85°C. Advanced Navigation's custom calibration process is the only full sensor calibration that can provide dynamic ranging, allowing the user to select a sensor range for high accuracy or high accelerations on the fly. As part of this calibration, every GNSS/INS spends 8 hours in our specially built rotating temperature chamber.
Certus contains Advanced Navigation's revolutionary sensor fusion filter. The filter is more intelligent than the typical extended kalman filter and is able to extract significantly more information from the data by making use of human inspired artificial intelligence. It was designed for control applications and has a high level of health monitoring and instability prevention to ensure stable and reliable data.
Certus contains a dual frequency RTK GNSS receiver that provides up to 1 cm accuracy positioning and supports all of the current and future satellite navigation systems, including GPS, GLONASS, GALILEO, BeiDou and QZSS.
Certus features multiple interfaces including Ethernet, CAN, RS232, RS422 and GPIOs. Certus supports all the industry standard protocols including NMEA 0183, NMEA 2000, TSS, PASHR, Simrad as well as a wide variety of proprietary protocols.

Certus features dual antenna moving baseline RTK. This allows it to provide highly accurate heading while both stationary and moving. It is an excellent choice for applications where magnetic heading is not usable due to interference or where additional accuracy is required. An added benefit is the ability to accurately measure vehicle slip angle.
Certus's precision marine grade aluminium enclosure is waterproof and dirtproof to the IP67 standard and shockproof to 2000g, allowing it to be used in the most extreme conditions. A sophisticated venting system allows the unit to measure air pressure whilst keeping water out. Its minimal size, weight and power requirements allow for easy integration into almost any system. The hardware is protected from reverse polarity, overvoltage, surges, static and short circuits on all external interfaces. The GNSS contains RAIM, which excludes both malfunctioning, and tampered satellite signals.
Certus contains a GNSS disciplined oscillator that can act as the primary time source within a distributed time system, enabling access to ultra-accurate system time using PTP or NTP network time sync. Certus also has a high-accuracy 1PPS and frequency output.
Certus features a rich, responsive embedded web interface that provides full access to all of the device's internal functions and data. 
Certus contains 256GB internal storage, allowing the user to log up to 1 year of navigation data without a requirement for any external systems or accessories.


Certus is well suited for marine surveying applications, providing all the reference data required in a single unit. Its heading is more accurate than high end gyrocompasses costing ten times the price and is continuously reliable unlike GPS compass systems. It features a revolutionary tightly coupled heave filter that provides heave accuracy surpassing most FOG systems. It also supports kinematic post processing with Advanced Navigation's Kinematica post processing software for maximum accuracy results.
Certus's high accuracy roll, pitch and heading make it well suited for surveying applications. It offers RTK (for free) which allows it to provide dramatically enhanced positioning accuracy over standard GPS with positioning accuracy of 1 cm. The system supports connection of a high resolution wheel speed sensor or odometer which allows it to maintain accurate data through GPS outages and continue surveys through tunnels and other areas where GPS signals are not available. It also supports kinematic post processing with Advanced Navigation's Kinematica post processing software.
Certus is ideal for use in helicopters where high levels of magnetic interference make magnetic heading unusable. In this application, single antenna GNSS/INS systems can have issues resolving the heading due to the 3D movement and stationary hovering of the platform. Certus is able to provide very high accuracy heading under all conditions whether stationary or moving and through all levels of magnetic interference.
In both stationary and moving antenna applications, Certus provides a high accuracy source of roll, pitch and heading that is ideal for antenna targeting control. Its ability to provide continuously reliable data through extended GPS outages and interference means that systems can maintain very high uptimes.
Certus is an excellent tool for performance measurement in motorsport. From the velocity and orientation data, slip, oversteer and understeer can be calculated. The velocity and acceleration data can be used to calculate improvements to braking and accelerating. Position can be used to determine the deviation from the optimum track position. Certus's high vibration tolerance and dynamic range means there are no concerns about engine or road vibration. Certus also supports data output to data acquisition systems such as Dewesoft products.
Certus’s accurate orientation data allows for stabilization of robotic systems and its position, velocity and acceleration data can be used for robot navigation. Certus's high update rate allows it to control dynamically unstable platforms and its focus on safety and reliability provides for piece of mind.


Horizontal Position Accuracy 1.2 m
Vertical Position Accuracy 2.0 m
Horizontal Position Accuracy (with SBAS) 0.5 m
Vertical Position Accuracy (with SBAS) 0.8 m
Horizontal Position Accuracy (with RTK or Kinematica PPK) 0.01 m
Vertical Position Accuracy (with RTK or Kinematica PPK) 0.015 m
Velocity Accuracy 0.05 m/s
Roll & Pitch Accuracy 0.1 °
Heading Accuracy (1m Antenna Separation) 0.1 °
Roll & Pitch Accuracy (Kinematica Post Processing) 0.03 °
Heading Accuracy (Kinematica Post Processing) 0.06 °
Slip Accuracy 0.1 °
Heave Accuracy 5 % or 0.05 m
Range Unlimited
Hot Start Time 500 ms
Internal Filter Rate 1000 Hz
Output Data Rate Up to 1000 Hz
Sensor Accelerometers Gyroscopes Magnetometers Pressure
±2 g
±4 g
±16 g
±250 °/s
±500 °/s
±2000 °/s
±2 G
±4 G
±8 G
10 to 120 KPa
Bias Instability 20 ug 3 °/hr - 10 Pa
Initial Bias < 5 mg < 0.2 °/s - < 100 Pa
Initial Scaling Error < 0.06 % < 0.04 % < 0.07 % -
Scale Factor Stability < 0.06 % < 0.05 % < 0.09 % -
Non-linearity < 0.05 % < 0.05 % < 0.08 % -
Cross-axis Alignment Error < 0.05 ° < 0.05 ° < 0.05 ° -
Noise Density 100 ug/√Hz 0.004 °/s/√Hz 210 uG/√Hz 0.56 Pa/√Hz
Bandwidth 400 Hz 400 Hz 110 Hz 50 Hz
Model Advanced Navigation Aries
Supported Navigation Systems GPS L1, L2
BeiDou B1, B2
Supported SBAS Systems WAAS
Update Rate 10 Hz
Hot Start First Fix 3 s
Cold Start First Fix 30 s
Horizontal Position Accuracy 1.2 m
Horizontal Position Accuracy (with SBAS) 0.5 m
Horizontal Position Accuracy (with RTK) 0.01 m
Velocity Accuracy 0.05 m/s
Timing Accuracy 20 ns
Acceleration Limit 4 g
Interfaces Ethernet
Speed 100Mbit
4800 to 4M baud serial
Protocol AN Packet Protocol
Peripheral Interface 2x GPIO
1x Auxiliary RS232
GPIO Level 5 V or RS232
GPIO Functions 1PPS input / output
Air data input
NMEA input/output
Novatel GNSS input
Trimble GNSS input
AN Packet Protocol
CAN / CANopen
Event trigger
Operating Voltage 9 to 36 V
Input Protection -40 to 100 V
Power Consumption (typical) 2.64 W
Hot Start Battery Capacity > 48 hrs
Hot Start Battery Charge Time 30 mins
Hot Start Battery Endurance > 10 years
Operating Temperature -40 °C to 85 °C
International Protection Marking IP67
Environmental Protection MIL-STD-810G
MTBF 140,000 hrs
Shock Limit 2000 g
Dimensions 78 x 115 x 34 mm
Weight 280 grams


Certus Datasheet
Certus Reference Manual
Certus 3D model


Certus Manager V5.7 (Windows, Mac & Linux)
Certus Manager is the software provided for testing, configuration and logging with Certus. Please see the Certus reference manual for more information. Java is required to run this program.
Release date
13 January, 2021
Certus Firmware V1.46
The firmware for all hardware versions of Certus. This can be loaded onto Certus using the web interface or the Certus Manager software. The changelog can be found in the Certus reference manual.
Release date
13 January, 2021
Certus SDK v5.0
The Certus SDK provides example source code for interfacing with Certus through the AN Packet Protocol. The languages provided are C/C++, Java, and .Net C#.
Release date
8 September, 2020