Dolly Mounted Radars


  • Dolly mounted
  • Lightweight Design
  • All LED Display
  • 10″ High Characters
  • Portable
  • Over Speed Flashing Violator Alert
  • White Strobe over-speed alert
  • Over Speed Blanking Violator Alert
  • Photocell for Auto dimming
  • Lowest power industry standard radar for speed measurement
  • Easily setup by one person
  • FCC pre-approved with CE mark
  • Available in 24.125GHz and 24.200Ghz
  • KPH Option available


CPU Software

With K&K Systems’ Laptop software you will be able to configure your violator alerts and other settings.

Optional Sign Package

With K&K Systems sign package you will easily be able to select the proper speed with the adjustable numerals.









0418-EG 4″ x 18″  “Your Speed Is” sign – Engineering Grade
ADDBAT12018 Additional 18A 12V battery
ER10-OF Add an Open Face display. (ER10 Series only)  No charge for this item.
ER10-STAT-599 Traffic Stats Package (ER10 Series only)
R2-1-1824-50-EG 18″ x 24″ (5-99 MPH 2 digit) for “Speed Limit” Engineering Grade sign (ER10 series only)
R2-1-1824-8×9-1-6-EG Numbers (5-99 MPH) for “Speed Limit” Engineering Grade sign (ER10 series only)
UP-RPM-14 Upgrade Models 112-D12R, 112-S12R & E-RDM10 from 10″ to 14″ 2 digit radar display.
UP-RPM-16 Upgrade Models 112-D12R, 112-S12R & E-RDM10 from 10″ to 16″ 2 digit radar display.
UP-RPM-18 Upgrade Models 112-D12R, 112-S12R & E-RDM10 from 10″ to 18″ 2 digit radar display.
UP-RPM-26 Upgrade Models 112-D12R, 112-S12R & E-RDM10 from 10″ to 26″ 2 digit radar display.


Question: Where could this unit be used?

Answer: Our dolly mounted speed displays can be deployed anywhere that traffic calming is needed. Some examples are:  schools, hospitals, factories, military bases, and much more.


Question: Being light and portable, how can it be secured against theft?

Answer: Typically our users for the dolly mounted radar are there with the unit at all times.


Question: Is it stable enough to use on windy days?

Answer: The dolly radar has enough footprint to sustain a typical windy day.

Question: How long will it run before the batteries require charging?

Answer: 3-5 days is typical usage before needing a full recharge.


Question: Are replacement chargers available?

Answer: Yes, please see them under our options tab on the website.


Question: Are the batteries readily available in the local market?

Answer: Yes, our batteries are readily available in the local market


Question: Should it need service, where are your authorized service centers located?

Answer: If any problems arise most of the time it can be handled out of our main office in Tupelo, MS. K&K is in the process of setting up partner locations across the country to help service our customers better.  This location information will be available soon on our website.


Question: Do you rent these or just sell them?

Answer: K&K currently just manufacturers these units to sell. If we have older, refurbished units on hand, we will rent them to our local market.


Question: What is lead time on these units?

Answer: Lead time is approx 4-6 weeks.


Question: What colors are available?

Answer:  White is our standard color for the trailer but you can get any custom color.  Just check out our options tab for more details on the model of interest.


Question: What type of paint is used?

Answer: We use a powder coat paint system.


Question: How long will batteries last?

Answer: Typical life span of a battery is anywhere from 3-5 years.


Question: Does it have auto dimming?

Answer: Yes, they all have auto dimming capability and also have a manual setting if needed; however, auto is our recommendation to save your energy.


Question: Are your radars FCC approved for license free operation?

Answer: All our radars are fully FCC part 15 approved for license free operation. Additionally, since we also supply to the worldwide market, many of our products also carry the CE mark.


Question: Can I use your radar for traffic calming applications?

Answer: Yes, our radar is designed for traffic calming.


Question: Can I use your radars for long range motion detection?

Answer:  Most likely. You can use our radar units for vehicle motion detection up to 2000+ feet (depending on the product type). However, the minimum speed is limited to about 2mph (3kph) and we recommend a minimum speed of about 5 mph (8 kph).


Question: How will my trailer/sign benefit from the radar’s low power usage?

Answer: The display is usually the most power hungry component in the sign. However, most displays shut off to a very low nominal power usage when they are not displaying any speed. The radar is the only part of the trailer/sign that is “ON” continuously- even when no traffic is present.  On many suburban roads it is not unusual for the sign to experience an average of 10-20% “duty cycle” on the display. This means that the display is ON only 10 to 20% of the total ON time of the sign. However, the radar is ON 100% of the time. So in effect, the power savings and therefore run time for the radar are increased.


Question: Why are your statistics called “Advanced Statistics”?

Answer: Because our units do traffic statistics inside the radar, the radar has the capability of “seeing” multiple vehicles simultaneously. Even when multiple vehicles are present on the road, all traffic calming radars send out either the fastest or strongest signal. Any statistics done outside the radar (either in a dongle or in the display panels) will never “see” these other vehicles.  In fact, tests have shown that our Advanced Statistics is up to 2X better in traffic counts than statistics done outside the radar.

Our Advanced Statistics features a trade secret algorithm that can even detect and count individual vehicles traveling one behind the other at the same speed. Can your current radar do that? The other advantage of our Advanced Statistics done inside the radar is that it does not increase the power usage of the radar. Any statistics that uses an external “dongle” to calculate and store the statistics includes additional electronics and will increase the power usage of the entire package. This additional power usage must be accounted for when comparing the power usage of our radar vs. the competition.


Question: Do you offer a traffic statistics analysis package?

Answer: Yes. We offer a very advanced statistics analysis package if you purchase our traffic stats in the radar. This package allows a user to read the collected statistics from the radar trim the data, view reports including the 85th percentile speeds, vehicle counts etc.  The user can also plot the data on interactive charts which allow them to zoom in/out, change the start/end date etc.


Question: What is the detection range of your radars?

Answer:  Our units, incorporating the DR series of radars feature typical detection range of about 1200 to over 2000 feet (from about 1/4 mile or 400 meters to almost 1/2 mile or about 600 meters) depending on model type. This value is tested on an open level road with the radar mounted about 5 feet off the ground detecting a compact vehicle approaching at 85 mph (except SS300 which is tested at about 50 mph). Range will be longer with larger trucks. Range may be affected by installation effects like curves, dips etc.  However, range has always been found to be more than sufficient by all our customers for traffic awareness applications even with large 18″ digits.  Our units using the SS300 radar features a 300+ feet (90+ meters) of detection range. It is designed for slower 25 mph (40 kph) roads (e.g. highway exits, road curves, school zones, traffic crossings, pedestrian and bicycle paths etc.) and not meant to replace the DR series of radars.


Question: Can your radar software be upgraded after I purchase it from you?

Answer: Yes. All our radar feature a “boot loader” that can accept new software via the serial port.  This gives you peace of mind that your radars can always be upgraded to any latest feature that may be added.

   Setup and guide to setting up your dolly mounted radar.

E-RDM10 Dolly Assembly

E-RDM10 wiring with stats

E-RDM10 wiring without stats



E-RDM10 – Radar – Operating Manual