SDM-500 Display & Logger

PLEX SDM-500 Display & Logger


Powerful 4.3” Display & Logger with optional GPS
fully configurable | smart features | compact Size

SDM-500® is our most advanced 4.3” display logger which is also available with a built-in 20Hz GPS/Performance Meter. It has fully configurable CAN BUS, preloaded Smart Alarms, Auto-display Page Changing, a permanent Engine Log, 1-click Min/Max values function and the capacity to display up to 256 different ECU parameters. The 256MB internal datalogger lets users record up to 7.5hours and review the logged files also on the device. Comes with a 4D wired joystick and is compatible with most after-market ECUs and with OBDII.

Discontinued Product

Key Features

4.3'' Anti-reflective Display

With luminance 1,000 cd/m2 and a multi-layer Anti-reflective coating the 480 x 272 display is easily readable in all light conditions and viewing angles

Smart Alarms / Warnings

Easy to setup pre-loaded alarms with history of
the last 100 kept in memory with time, duration & value

On-Device Data Log Review

The 256Mb internal memory allows logging up to 7hrs up with variable log rate up to 100Hz and easy log reviewing on the device

QuickGlance™ UI

Configurable 3-level colour coding  and optimum contrast settings minimize driver distraction and communicate engine status with just a quick glance

Fully Configurable

Fast CAN BUS receive & transmit config., custom page layouts & multi-use inputs let you arrange SDM-500 according to your own terms

20Hz GPS & 3-Axis Accelerometer

Built-in 20Hz GPS module and 3-Axis accelerometer enable predictive lap-timing with section break down and can also be logged in raw format

Automatic Page Changing

Hands-free display page changing based on user-defined conditions such as engine status / load to help you keep your attention focused.

Up to 256 ECU Channels

Depending on your ECUs capacity view up to 256 different channels/parameters including ECU status and error flags

Integrated Performance Meter

Full scale Performance Meter that runs all-the-time in the background with automatically saved 1/4 runs when speed exceeds 100kph
After-Market ECU Compatibility
Stock ECU Compatibility
SDM Displays Stock ECU ListMore protocols to be added soon
After-Market ECU Compatibility
Stock ECU Compatibility
Product Videos
Product Hardware Details
PLEX SDM-500 Display & Logger
Product Hardware Details
SDM-500 Display & Logger
4.3” High-Brightness Anti-reflective TFT Display

With luminance 1,000 cd/m2  the 480 x 272 display looks very vivid and is easily readable in all light conditions and from various viewing angles. The multi-layer broadband antireflective coating decreases surface reflections drastically, whilst increasing light transmission and eliminating “ghost” imaging.

Ultra-fast Display Refresh Rate

20Hz display refresh rate ensures a smooth, real-time-feel visual experience and lets you view exactly what is happening, the moment it is happening, with no delay in between

Auto-Dimming Function

A sensitive light sensor at the front of the monitor enables adaptive display dimming to suit the light conditions and makes viewing better both in direct sunlight and low light conditions

Ultra Bright LED Lights

7 auto-dimmable shift LED lights with configurable set point per gear as well as step distance per rpm (e.g. every 100rpm) ensure optimised gear changing

QuckGlance™ UI For Best Viewing Ergonomics

Smart Colour Coding
Configurable 3-level parameter colour-coding minimises distraction and communicates engine status easily with just a quick glance. How does it work? The user defines the low (BLUE), normal (GREEN) and high (RED) thresholds for each displayed channel and the SDM-500® colours it accordingly once the values hit that range. Your peripheral vision will then let you know almost instinctively when something is out-of-place and if it requires your extra attention.

Optimum Contrast, Saturation and Fonts
Instead of trying to impress with fancy realistic graphics, overly contrasted display items and ineffective fonts, we chose to implement the most effective combination of font type / size, colour palette and contrast levels that is derived from aviation dashboard design and colour theory studies. Priority is placed in having effective display items that require the minimum driver attention and achieve a “magnifying” effect making the SDM-500® come across as larger than just 4.3”.

Values below "NORMAL" range
Values within "NORMAL" range
Values above "NORMAL" range
Auto Display Page Changing

The Auto Display Page Changing function  allows you to keep your hands on the wheel and your focus on the track without having to manually switch among different page layouts. You only have to decide on the conditions and the parameters for 4 different display pages: “WARM-UP”, “RACE”, “ERROR” and “NORMAL” and once the thresholds are reached the SDM-500 will automatically switch to the respective page.

Multiple Display Page Layouts

More than 10 different display layout pages to choose from, plus Pop-up displays, diagnostic, setup and statistics pages. All designed to offer best possible viewing ergonomics. Users can select to install the same layout many times but with different channels and name them accordingly.

Selectable colour themes


Our recommended theme for optimum viewing ergonomics based on recent studies


Theme for colour blind drivers who cannot easily distinguish green and red


Amber colour theme for blending the display better with OEM dashboards


White background theme usually preferred for day or open air use

View up to 256 ECU Channels

Depending on your ECU’s capacity and the connected sensors, the SDM-500 can display up to 256 different channels among which are ECU status and error flags. Always be in the know of what’s going on inside your engine.

Min. & Max. Values with Just 1-Click

With just a single click on the SDM-Joystick of via the device’s side keys, you can view the minimum or maximum values of every displayed parameters and decide whether to maintain the value in memory or dismiss it and start counting again

Permanent Engine Log

Continuous Engine Log function that runs on the background and which keeps an independent log with max. values and histograms for key engine parameters such as RPM, MAP, ECT, OILT, FUELT, EGT1, EGT2 and the min. BATV.

Preloaded Smart Alarms

20 pre-loaded Smart Alarms which only require that you input their trigger value reduce set-up time by more than 80%. Alarms will then appear superimposed in high contrast over the display page according to set priorities. A history of the last 100 alarms including their date, value and duration will be  stored in a log for later retrieval on the PC SW.

Integrated Performance Meter

A very accurate, accelerometer assisted, Performance Meter runs all the time in the background providing reliable measurements in different units/formats: 0-60mph, 60-120mph, 0-180mph, quarter mile (60ft, 1/8 mile, 1/4 mile with exit speeds), 1km/1mile with exit speeds and more. The always-on performance meter automatically saves 1/4 mile runs when top speed exceeds 100kph.

20Hz GPS Module & Lap Timing

An upgraded 20Hz internal GPS module with ultra-fast start-up time (1-3 sec) and time-zone setting to auto-sync device time, enables accurate predictive lap-timing with section break down and raw data logging. The lap timing feature can be used on both open and closed circuits and can be driven by the GPS or CAN Bus data (e.g. ECU) or a track beacon signal.

PLEX SDM-500 Display & Logger

Uniquely shallow total installation depth of just 19mm makes the the SDM-500 suitable also for OEM dashboards. Without any protruding wires and connectors from the back side, installation is quick and requires minimum effort.

On-the-Fly Configuration & Control

Control your SDM-500® easily with the supplied wired  joystick that is used for device set-up, menu browsing/page changing and controlling of the on-device data log review function. Being small and lightweight, yet ergonomic and rugged the joystick adds a new level of safety and convenience while you are driving

On-Device Data Log Review

The SDM-500® comes equiped with an integrated 256MB datalogger that records up to 7,5hours and varying rates up to 100Hz . The logged files can be reviewed effectively on the device in 3 easy steps without the need for a PC. The on-device log-file reviewing provides reduced complexity, saves valuable time and brings unique convenience to a process that typically requires plugging in a PC and setting-up correctly the analysis SW.





8 user-defined math channels allow custom parameters to be calculated in real-time. Examples: break bias calculation, long-button hold detection, accumulated condition active time, and more.

Custom CAN BUS

Fully programmable CAN BUS for message receive lets you configure the display to collect information for almost any CAN Bus ECU or other device on the market. Configurable message transmit lets you control other devices such as PDMs or translate message to a different format as required.

  • 2x Multi-purpose Inputs
  • 2x configurable Aux Outputs
  • 2 EGT Inputs
Fast & Intuitive PC Software

When setting-up a display for a project, the single most important attribute for tuners/race engineers is the required time. Our revised PLEX Device Manager® SW, provides the fastest and most intuitive configuration experience by reducing set-up time by up to 70%. You can now spend more time in tuning and testing than in customising and configuring the displays for your customers.

Download SW

The new PLEX Data Analysis WIN PRO Software® (PLEX PDA-WIN PRO) is one of the easiest, fastest and most versatile data analysis & visualisation solutions available that is meant to shape the way racers benefit from logged data by saving time & enabling smarter decision making. The intuitive UI and customisation options help one decipher complex engine, race, driver & tuning data by visualising it in easy to interpret & compare graphs, tables and other analysis components. Additionally, its .csv file import function makes it suitable for any logger, ECU and display. Get the PLEX PDA-WIN Pro®and race based on facts, not intuition.

Customisable UI

User defined layout of tabs and panels with handy panel docking similar to latest Windows SW suite.

Easy File Comparison

Seamlessly switch between single and comparison view even for completely different file types such as a dyno run with a track lap.

Vide File Sync

Sync and review your video data along with the log data to get additional information on driver performance and data context

Fast Keyboard Shortcuts

Keyboard shortcuts for the main menu and panel functions speed up the set-up time and real-time analysis considerably.

Live Data Updating

Zoom levels & cursors are linked among all analysis panels/graphs allowing automatic rescaling & cross referencing of data.

CSV Data Import

Take advantage of the PLEX Data Analysis Sw & use it to analyse data, from any logging system (ECUs, dedicated loggers, etc)

Multiple Data Graphs & Reports

Line-graphs, navigation graphs, XY graphs, histograms, gauges, track-maps, tuning maps, laps/runs reports, data values at cursor and more.

Built-in Project Database

Create and keep track of events, tracks, drivers, vehicles and engines for easy referencing and historical data tracking.

Smart Tuning Maps

Optimise your fuel and ignition maps by analysing the log data in tuning maps with the same breakpoints as your ECU.
SDM Displays Comparison Chart
Design & PriceuSDM-100uSDM-102SDM-300SDM-500SDM-550SDM-700
Price ex. VAT€399€469€799 - €864€1.099 - €1.299€1.599€2.299
Dimensions in mm (w/h/d)77/47/1277/47/12123/90/19123/90/19145/95/16200/129/27-47
MaterialCNC Alum.CNC Alum.CNC Alum.CNC Alum.CNC Alum.CNC Alum.
RBG LED Lights11991616
Connectoroptionaloptional16 pin / flat mount22 pin flat mount26 pin / sealed37 pin / sealed
Multi-purpose Inputs-4x AN/DI/FRoptional (2)2x AN/DI/FR10x AN/DI/FR8x AN/DI/FR
Thermocouple Inputs-2-22
Aux Outputs--optional (2)2 LS2 LS2HS & 2LS
Wiring Loomyesyesyesyesoptionaloptional
Control Interface /Joystick--optionalyesoptionaloptional
CAN BUS111222
LIN BUS---111
Internal Sensors
GPS---20Hz25Hz GNSS50Hz
Light Sensoryesyesyesyesyesyes
Real-time Clockyesyesyesyesyesyes
Device TEMP Sensoryesyesyesyesyesyes
User Interface
# of Pagesup to 16up to 16up to 24up to 24up to 48up to 48
# of Display Parametersup to 128up to 128up to 256up to 256up to 512up to 512
Custom Pagesyesyesyesyesyesyes
Custom Page Design--yesyesyesyes
Colour Themes--yesyesyesyes
Logging Rate / Channel-20Hz-100Hz / variable100Hz / variable500Hz / variable
# Logged Channels-64-256512512
Engine Logyesyesyesyesyesyes
Alarms Logyesyesyesyesyesyes
Lap Timing---yesyesyes
Acceleration Performance---yesyesyes
Engine Power & Torque---yesyesyes
Math Channels-4881616
Custom Flagsyesyesyesyesyesyes
Trip Meter (dist./time/avg. speed)yesyesyesyesyesyes
Product Versions
  • SDM-500 Basic
  • SDM-500 GPS
Technical Spec
  • Operating Voltage: 6 – 18V DC
  • Operating Temp: -10 to +60 deg C
  • Dimensions: w 123mm, h 90mm, d 19mm
  • Weight: 270g
What’s in the Box
  • Display
  • 4D Wired Joystick
  • Ext. GPS Antenna (GPS ver.)
  • Wiring Loom
  • Mounting Screws
  • 3M Velcro Tape


Powerful 4.3” Display & Logger with optional GPS
fully configurable | smart features | compact Size

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