Portable, simple-to-use interface.

Works on Microsoft PC Laptops, Windows Tablets and Microsoft’s Surface Tablets.

With M.E.D.S. you are not bound to a small, expensive to replace, handheld device. Our software works on any PC laptop running Windows 10 Operating System. Recommended Computer System Requirements are below.

  • Windows 10 Operating System / Intel I5 Dual Core processor @2.5 Ghz or greaterRecommended I7 Quad Core @ 2.5 Ghz or greater / USB 2.0 or USB 3.0 Port / 10 GByte  of Free Hard Disk Space,  Recommended 50 GBytes or greater / 2 GByte  of RAM,  Recommended 6 GBytes or greater / Tablets running Windows 10 with a USB port (*Note: Windows 8 RT will not work with M.E.D.S.). Processor must be I5 Dual Core @ 2.5 Ghz or better / Screen Resolution of 1360×768 or higher

For best results, the Windows display DPI resolution should be configured at standard 96 DPI or higher. Some controls may not be visible or look distorted at nonstandard DPI settings


Plug and play system. Simply plug into the engine and start working.

With M.E.D.S. there is no need to hassle with entering in the make, model or even the serial number of the engine you’re working on. Simply plug in the cable and let M.E.D.S. do the work for you. We care about saving you time and money.


Navigate anywhere with a single click.

Our simple to navigate menu allows you to get the information you need quickly. Combine that with our large standard screen size of 1360 x 768 px. and you have a software that allows you to read the engine and diagnose any issues quickly and easily.


M.E.D.S. Check Report makes you money.

Customizable & comprehensive engine history report.

The M.E.D.S. Check Report allows you to run a full diagnostic test on your customer’s engine and present them with a comprehensive report detailing everything from the number of hours on their engine to the last time they did an oil change. You can upload your company logo to M.E.D.S. and have it appear in the upper left hand corner of your M.E.D.S. Check Report. Learn More.

M.E.D.S. works with most major engine brands.

Compatible to test most Honda, Mercury, Mariner, Mercruiser, Johnson, Evinrude, Yamaha, Yamaha PWC’s, Suzuki, Volvo Penta, MEFI 1-4, and select gasoline inboard engines. Learn more.

Software Capabilities

  • Plug & Play
  • Portable, Simple-to-Use Interface
  • Live 3D Digital Dashboard and Charts with NEW Enhanced Contrast Feature
  • Engine System Data
  • Auto Self Test
  • Engine History Data
  • Real Time Data
  • Freeze Frames – Engine Faults, Tachometer, and Output Load Tests
  • Integrated Help Menu
  • M.E.D.S. Check Report – Customized for Each Customer
  • French & Spanish Versions Available

*Please note, available tests & capabilities depend upon the engine type.


  • Hands free information
  • Engine configuration data
  • Displays active & inactive faults
  • Clear faults with a single click
  • Displays run history by RPM range and # of hours
  • MEDS Help built in
  • Set / Monitor Break In Period
  • Display engine functions during a fault (i.e. an engine stall)
  • Drill down to the engine failure (i.e. injector)
  • Individually test components (i.e. one injector at a time)

M.E.D.S. Help Overlay Live ECM Screen Shot


NEW! Enhanced Contrast Screens for easy viewing in the garage or in the sun.

Free diagnostic technical support.

Experienced professionals ready to help you when you call.

When you purchase our M.E.D.S. software you become a part of the CDI family. If you have questions about the software one of our experienced technicians can help you get the answers you need. Learn more.

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CDI Electronics has over 65 distributors in 14 countries so that you can get what you want when you need it.

Call CDI Electronics.

Give us a call and one of our specialists will be happy to answer any questions you have about M.E.D.S. or any other CDI Electronics product.

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