G-Controller Universal (12VDC or Solar)


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Click here for the Introduction Video

G-Controller Manual v1.1a


The G -Controller Universal has a REVERSE POLARITY  (common Anode VCC+) option that allows you to connect your existing Signals or Crossing Flasher.   We recommend using the rubber mounting blocks even if you plan to install into the ground.

The Non battery setup has a slimmer Electrical Box as shown below.  The 12VDC system can be run on the power from the Battery Version.  Up to 4 Signal Controllers can be run on the battery  but of course battery life will be reduced.  We suggest two.

We pioneered the use of a non infrared style sensor which we call a Precision Sensor.  The sensor has a 1mm precision on range detection and will work in direct sunlight or pitch dark.  You can manually or automatically (Auto Ranging) set the detect distance.  Then you can choose what type of aspects you want to display.  For example, a simple red, yellow green progression, or you can add variations that include the yellow aspect either solid or flashing.  For the PRR (7 Light signal) you can decide if you want the center light to extinguish with Red or be on all the time.

The Sensor has a variable Timeout adjustment.  That means you can delay the start of the light aspect changing from zero to up to 60 seconds after the train has cleared the sensor.

The Signal Controller (built in) allows you to adjust the speed by which each aspect changes.

All Signal Controllers have forward and reverse latching (see video on latching).  Additional stand alone sensors can be interconnected to yield a longer block detect area.


A.  (4″ x 4″) Heavy Weight Rubber Mounting Block; holes drilled with Resin Feet ($10 x 2)
B.  (4″ x 6″) Heavy Weight Rubber Mounting Block; holes drilled with Resin Feet ($20)


4″ x 4″ x 1″ Rubber Mounting Block ($10 each)


12VDC Power Supply with Barrel Plug to Wired Connector

  • Automatic overload cut-off
  • Over Voltage cut-off
  • Automatic thermal cut-off
  • Short circuit protection



Weight 32 oz
Power Supply

12 VDC Power Supply, No Power Supply, Solar Battery

Rubber Mounting Blocks(2)

With Blocks, No Blocks

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