Stalker Radar brand of police radar, law enforcement laser and lidar, and sport speed measurement guns from Applied Concepts.

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Sports Radar

Testing System

LED Displays
> 3-1/2 Digit LED
> 2-1/2 Digit LED

LED Speed Sign Systems
> Pro II Package
> Sport 2 Package
> Solo 2 Package

Legacy Sport Radar Gun Accessories
> Accessories



Stalker Pro II
ProII Speed Sensor rear view
Bluetooth capable
[Mouse over thumbnails to see larger image]
See tab below for complete gun and LED Display configuration and required accessories.
The Stalker LED Speed Signs
Next Generation High-Intensity LED Speed Signs
Available in 2 1/2- and 3 1/2-digit models

Stalker’s new Speed Signs use high-intensity LEDs with no moving parts to break or wear out and are thinner and lighter than their old-generation counterparts. These new Speed Signs do things that the old flip-signs can’t do, such as connecting up to three Speed Signs to a Pro II radar to simultaneously show Pitch, Plate, and Hit speeds.

  • Lightweight and durable
  • Stable swingout feet
  • Folds flat for easy storage
  • Hangs with integrated top corner hooks
  • Bright, easy-to-read LED digits
Stalker LED Speed Signs interface with all Stalker Sport Radar and Jugs Radar Guns through the use of connectors and dedicated cables.
  • Stalker ATS II
  • Stalker Pro II
  • Stalker Sport 2
  • Stalker Solo 2
  • Stalker Sport
  • Stalker Pro
  • Jugs Pro-Sports
  • Jugs Si Arcade

Dedicated cables must be purchased separately.
See the ACCESSORIES tab below for the proper cable.

2 1/2-digit model
(displays whole numbers) $543.00
Click here to add to cart

3 1/2-digit model
(displays whole numbers & tenths) $662.00
Click here to add to cart

U.S. Prices only. International prices may vary.

An external switching power supply converts 110 VAC or 220 VAC into 12 VDC and connects to the sign through a 5.5mm x 2.5mm center-positive jack. A male DB-9 connector, receives data from the radar unit.

The Stalker LED Speed Sign interfaces with sport radar guns through
the use of connectors and dedicated cables:

Model Cable (connector)
Stalker ATS II 155-2284-00
Stalker Pro II 155-2284-00
Stalker Sport 2 155-2287-25
Stalker Solo 2 155-2287-25
Stalker Pro

For radars without and RS232 port require a Handle with Data Connector 200-0163-02

For radars with RS232 port.*

Stalker Sport

For radars without and RS232 port require a Handle with Data Connector 200-0163-02

For radars with RS232 port.*

Jugs Pro-Sports 155-2287-25
Jugs Si Arcade 155-2312-20

* Requires a Battery Handle (200-0480-00) or Corded Handle (200-0163-00)

Model: 2½-Digit Speed Sign 3½-Digit Speed Sign
Dimensions: 15.5” (39.4cm) wide
9.5” (24.1cm) high
1.375” (3.5cm) deep
21.5” (54.6cm) wide
9.5” (24.1 cm) high
1.375” (3.5cm) deep
Weight: 6.05 lbs. (2.74kg) 8.05 lbs. (3.65kg)
Digit height: 8.0” (20.3cm) 8.0” (20.3cm)
Input Voltage: 8 to 24 volts (.12 A @12 VDC) 8 to 24 volts (.15 A @12 VDC)
Speed Resolution: Whole numbers Tenths

Stalker LED Speed Signs are manufactured in the United States and backed by a full 1-year warranty.

The LED Speed Sign is weather resistant, but should be kept out of heavy rain. The external power supply is not waterproof and should be kept dry at all times


Stalker LED Speed Sign Setup and Configuration:

LED Speed Sign Setup
The Stalker LED Speed Sign features rotating feet that fold parallel to the sign’s case for easy storage. To position the Speed Sign on a flat surface, rotate the feet 90 degrees so that they are perpendicular to the sign’s face. Alternatively, hang the sign using the integral top-corner hooks.

Connecting a Radar and a Sign
In order for the Speed Sign to properly recognize the particular radar gun model and its data, the unit(s) should be connected in the following manner:

1) connect data cable to radar and sign
2) apply power to sign by connecting the external power supply*
3) power up radar


Speed Sign Controls
The Stalker LED Speed Sign’s controls are located on the lower left side of the unit. A momentary push-button switch initiates LED testing sequences in the following modes:

Push 1 – Table Demonstration Mode: Slowcount, full digit flash, slow count, fast count, loop...
Push 2 – Fast count
Push 3 – All LEDs on
Push 4 – Show software version
Push 5 – Enter normal mode

To configure multiple LED Speed Signs using the Stalker Pro II radar, use Speed Sign multiple sign cabling hub, 200-0815-00. Set DIP switches 6, 7, and 8 to their appropriate positions before connecting the radar and signs.

Switch Position 2½-Digit Speed Sign
part number - 200-0778-00
3½-Digit Speed Sign
part number - 200-0779-00
Switch 1: ON Set to ON (↑) when K-Sport or Sport Pro output is TTL (data from bottom
of the handle). Set to OFF (↓) for all other radars.
Switch 2: ON 100% brightness.
Switch 3: Reserved Unused
Switch 4: Reserved Unused
Switch 5: ON,
Ignore Decimal Point
The 2½-Digit LED Speed Sign ignores the decimal point and anything following. The 3½-Digit LED Speed Sign ignores anything following the decimal point. “123.4” is displayed as “123”. “1234.5” is displayed as “1234”.
Switch 6: ON Displays - Release Speed For bE format.
Switches select which
Speed Reading is displayed.
Switch 7: ON Displays - Plate Speed
Switch 8: ON Displays - Hit Speed
Default setting: All 8 switches OFF.