Can't connect to your vehicle's VSS?

When you are out on patrol monitoring traffic speeds, accuracy is everything. But to have accurate speed readings while your patrol vehicle is in motion, your radar needs to have precise, second-by-second feedback about your vehicle’s speed relative to the targeted vehicle’s.

The best way to acquire this information is to connect your dash-mounted radar unit directly to your vehicle’s computer via the Vehicle Speed Sensor (VSS), either by wiring into the VSS cable directly or by accessing it through the vehicle’s OBD-II port.

Unfortunately, some late-model patrol vehicles are no longer offering access to the VSS.

That’s why Stalker developed the Stalker Speed Module.

The Solution

The Stalker Speed Module is a small plug-and-play device that attaches right to the back of any of your current Stalker radar units- and it is so simple that anyone can do it in under two minutes.

The Module utilizes Stalker’s proprietary Inertial Navigation Technology combined with a Global Positioning System (GPS) satellite receiver to accurately determine vehicle patrol speed. This key technology combination allows the radar unit to maintain precise vehicle speed tracking even in areas where a GPS signal is unavailable (which happens with all GPS receivers from time to time), such as when you are driving around tall buildings, in densely forested areas, while going through tunnels, and during inclement weather.

Of course, the Stalker Speed Module also supports the very popular Stalker Moving/Stationary auto-switching features found on many of our radar units.

Stalker Radar’s products are renowned for their longevity. We work hard to keep your Stalker radars on the road, even in the face of rapidly changing vehicle technology and evolving National Highway Traffic Safety.

Four Models to Choose From

Choose the right model for your current radar setup:

Internal GPS Models

The Internal GPS models are designed for use with counting units that are mounted on the dashboard of the patrol vehicle. The GPS component is housed within the Speed Module.



External GPS Antenna Models

The External GPS antenna models are used when the counting unit is mounted somewhere other than the dashboard, such as under the seat. Use the included 9’ (2.75 m) long cable to connect the Speed Module to the included external antenna that will be mounted on the dashboard with clear view of the sky.

DSR 2X, DSR, DUAL SL External GPS 


If you would like more information about the Stalker Speed Module,
please contact your Stalker Sales Representative today.


Purchase the speed module(s) online.

Speed Module with Internal GPS-Ka-Band
200-1503-00 $195.00

Designed for use with Stalker radar

Speed Module with External GPS – Ka-Band
200-1503-01 $225.00

Used when the Stalker DSR 2X,

Speed Module with Internal GPS – K-Band
200-1537-00 $195.00

Designed for use with Stalker PATROL.

Speed Module with External GPS – K-Band
200-1537-01 $225.00

For use with the Stalker PATROL.

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