OBDII Odometer

The OBDII Odometer is a smart interface cable that communicates with a vehicle's on-board computer to determine the current vehicle speed. It outputs real time vehicle speed over an RS232 serial data interface. When connected to one of Advanced Navigation's Spatial series of GPS/INS products it allows for outstanding navigation accuracy when GPS is not available.

USD 378
Standalone Unit Price

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Supports Almost All Vehicles
Supports Almost All Vehicles
With built in support for eleven different OBDII communication protocols, the OBDII Odometer supports almost all modern vehicles on the market. It is completely plug and play with no setup required and can be switched between vehicles in seconds.
ABS Speed and Reverse Detection
ABS Speed and Reverse Detection
On GM, Ford and some European vehicles, the OBDII Odometer is able to retrieve vehicle speed from the ABS (Anti-lock Braking System) system which provides a very high resolution speed. On all other vehicles the OBDII Odometer will provide speed from the transmission which is still a very accurate reference. The OBDII Odometer is also able to determine when the gearbox is in reverse on a range of vehicles.
Miniature Durable Design
Miniature Durable Design
The OBDII Odometer has a miniature in-line design that is easy to fit into any vehicle. It features a strong ABS plastic shell and tough strain relieved cabling.
The OBDII Odometer is protected from surges, reverse polarity, brown outs and overvoltage to continue operating through harsh electrical conditions. It's communications interface is optically isolated to prevent ground loops and protect sensitive equipment connected to it. It is built on top of a safety oriented real time operating system and all software is designed and tested to safety standards with fault tolerance in mind.


Urban Navigation
Urban Navigation
In urban environments where multipath is a big problem for GPS/INS units, the OBDII Odometer can help to increase accuracy and reduce position drift.
In security applications where GPS systems may be jammed, the OBDII Odometer can assist a GPS/INS to continue providing accurate positioning through jamming.
In surveying applications that require continuously accurate positioning even when passing under heavy tree coverage and through tunnels, a GPS/INS combined with the OBDII Odometer is able to provide the results required.
For mining applications that need to monitor vehicle speeds around the site for safety, the OBDII Odometer can be used standalone to easily retrieve the required data without any intrusive installation.


Protocols Supported ISO 9141-2
ISO 11898
ISO 14230-4
ISO 15765
ISO 15765-4
SAE J1939
Other Manufacturer Specific
Interface RS232
Interface Isolation Optically Isolated
Speed 115200 baud
Protocol AN Packet Protocol
Output Data Rate 10 Hz
Operating Voltage 9 to 16 V
Input Protection Surge
Over-voltage and Under-voltage
Brown Out
Reverse Polarity
Power Source OBDII Connector
(vehicle power)
Power Consumption
0.72 W
Operating Temperature -40 °C to 85 °C
Environmental Protection IP54
Weight 202 grams


Download / Link
OBDII Odometer Reference Manual


OBDII Odometer Viewer V1.1 (Windows & Linux)
A very basic utility to view the data from the OBDII Odometer. Java is required to run this program.
Release date
25 May, 2018
OBDII Odometer SDK V1.0
The OBDII Odometer SDK provides royalty free example source code for interfacing with OBDII Odometer through the AN Packet Protocol. The languages provided are C/C++, Java, and .Net C#.
Release date
25 May, 2018
OBDII Odometer Firmware V1.1
The firmware for all hardware versions of OBDII Odometer. The changelog can be found in the OBDII Odometer reference manual.
Release date
25 May, 2018