Innovative Electronic Products for Model Railroaders


Use Our Products To:

-Operate Your DCC Equipped Locomotives With a Wifi Throttle.

-Replace Grain of Wheat Headlight Bulbs with LED's.

-Add MSS (Modular Signal System) To Animate your Layout or Free-mo Module With Prototypical Signals.

NEW PRODUCTS!!

Scale Signal Systems Universal DCC WIFI Throttle

Hand held throttle designed to establish a WIFI connection to a command station that has a computer running JMRI WiThrottle or Digitrax LNWI. Large speed control knob that is not available with cell phone applications (Engine driver, WiThrottle). Forward-Idle-Reverse switch next to speed control knob. 29 function keys available for control of locomotives. OLED screen. Built in battery charger and long-life replaceable battery. 
Ad-hock consisting of up to 4 locomotives and 2 user configurable function keys. Includes layout power on-off control. Requires a "modicum of electronic engineering experience" (FCC's language not ours!) to assemble. Requires soldering the push buttons to the middle board and assembly of boards together with screws before inserting into case. Complete assembly instructions provided.
Concerned about assembly? Why not ask a friend to assemble it for you. Contact us for more information. 

• Kit Price $160






Scale Signal Systems HO Scale LED Headlight Lens Kit

These LED head light lenses are designed to replace the grain of wheat bulbs used in Athearn, Kato, or other brands of HO scale locomotives. A 2 mm or 1.5 mm fiber optic tube is polished at one end and is inserted from inside the shell so that it is flush with exterior. Can be used with model locomotives where a light bar to the lenses is installed. Use a ¼ watt 1K ohm resistor (provided) to prevent LED from being burned out. Do not exceed 3.0 volts or 20 milliamps. 

Kit Price $15

Modular Signal Standard (MSS) Products

Scale Signal Systems Optek Detector v3.0

Provides the Optical Detection function described in the MSS specification. It uses advanced digital sampling to enhance the detection capabilities of the OPB-704WZ optical sensor. The module can also be used to provide release delay capabilities for current detection products  without release delay capabilities. The optical and current detection outputs are combined into two buffered outputs.  Sensitivity adjustment added to remove IR flooding issue. 
Supports 1 OPB-704WZ optical sensor. Can be configured with 0.1" headers rather than terminal blocks for use with .1” (2.54mm ) Female to Female Connector Cables. Please specify at time of order. Optical sensor not included.  Not offered as a kit.

Assembled and Tested  $40

Scale Signal Systems DAPD Detector v3.1 

Provides the Optical Detection function described in the
MSS specification.
Uses available light to detect train position. Based on a Geoff Bunza design. Comes with 2 PT19 photo transistors. One mounted on a HO circuit board tie and the other on a 1/4" circular circuit board or 2 1/4" circular circuit boards. Also a available as a 2 track 3 sensor board. Board can be configured with 0.1" headers rather than terminal blocks for use with .1” (2.54mm ) Female to Female Connector Cables. Please specify at time of order. Not offered as a kit.

• Single Track Assembled and Tested $45.
• Double Track Assembled and Tested $60. 

Scale Signal Systems Signal Driver v2.0 Dual Head

Provides the signal driver function for 2 signal heads as described in the MSS specification.
Requires clean 12 volt DC input. Drives lamps/LEDs at 5v. Direct output to servo can accomdated. RJ 12 connectors can be replaced with terminal blocks. This board can be configured with 0.1" headers rather than terminal blocks for use with Dupont Wire Female to Female Connector Cables 2.54mm 1P-1P. Please specify at time of order.
Also offered as a single head board. Not offered as a kit.

• Dual Head Assembled and Tested $60
• Single Head Assembled and Tested $35 

Scale Signal Systems Signal Terminator v1.0

Provides Plug and play termination for Signal Driver board
Has series resistors for Lamps / LEDs. Resistor value can be easily changed to accommodate input voltage.
Allows for easy removal of signal for travel or troubleshooting. RJ 12 connectors can be replaced with terminal blocks.
This board can be configured with 0.1" headers rather than terminal blocks for use with Dupont Wire Female to Female Connector Cables 2.54mm 1P-1P. Please specify at time of order.

• Kit price $8.00 Assembled and Tested Add $3 

Scale Signal Systems Straight Breakout v1.0

Provides a pass-through function for easy hookup of the MSS bus.
Provides a breakout for simple connection of a current detector.
This board can be configured with 0.1" headers rather than terminal blocks for use with Dupont Wire Female to Female Connector Cables 2.54mm 1P-1P. Please specify at time of order.

• Kit price $6.50 Assembled and Tested Add $4 

Scale Signals Systems Crossover Breakout v1.0

Provides a crossover module function described in the MSS specification. Provides a breakout for simple connection of a current detector.
This board can be configured with 0.1" headers rather than terminal blocks for use with Dupont Wire Female to Female Connector Cables 2.54mm 1P-1P. Please specify at time of order.

• Kit price $6.50 Assembled and Tested Add $4



Scale Signal Systems Cascade v3.0

Performs the cascade module function described in the MSS specification.
Supports Approach Diverging Function.
This board can be configured with 0.1" headers rather than terminal blocks for use with Dupont Wire Female to Female Connector Cables 2.54mm 1P-1P. Can also be ordered with right angle or straight headers for direct connection to Scale Signal Systems signal drivers and optical detectors. Please specify at time of order.

• Kit price $15.00 Assembled and Tested Add $8

Scale Signal Systems Signal Plug

Designed to make removal, installation, and protection of expensive signals easy. Insures that signals are flush with scenery. Combination of electronic components and laser cut wood. Top of plug is epoxied to the bottom of the signal. Signal connections from head(s) are soldered to an 8-pin connector. Socket is installed in lowest ring and entire assembly is glued into a 1" diameter hole in the lay out surface. Push rod is used to push signal out when module is transported. Signals and signal terminator not included.

Kit price $25. Assembled, installed, and tested on your signal add $10 

Scale Signal Systems Signal Driver v2.2TH. 

This driver provides the signal function for up to 4 signal heads as described in the MSS specifrication and drives lamps or LED's with 12 volts to support older signas. Supports full function for 2 heads( 3 colors), second head for approach diverging (1 color). Limited Availability. Contact us for more information and pricing on this product.

Scale Signal Systems supports open standards. This includes open specifications like MSS and OpenLCB.


All of our hardware designs are open source and are licensed under the Creative Commons Attribution-ShareAlike license


In addition all of our software is also open source and licensed under GNU General Public License, version 3 (GPL-3.0)

WARNING: These products contain chemicals known to the State of California to cause cancer, birth defects or other reproductive harm.