Made in Portland, OR. Celebrating over 70 years in business

A Message from ISSPRO

Dear Valued ISSPRO Customers,
Welcome to our newly updated website! We are glad to see you!
We have been working hard innovating new and exciting products into our product lines such as;
  • EV3
  • EV² multi-gauges
  • EV² mechanical pressure gauges
  • 90° thermocouples
  • R601 fuel level gauge ohms tester
We stepped up our social media presence by expanding from just Facebook, you can now see us posting regularly on Instagram (@IssproOfficial) and Twitter (@Isspro3) as well. 
We here at ISSPRO appreciate your support and business as we continue to strive to provide durable and well-made products in our facility and to continue to provide the excellent customer service that our customers have to come to expect from ISSPRO over the years.
Meet our Tech Support Team
Need tech help to install or troubleshoot your gauges? Call ISSPRO for tech help! You can speak to our techs to get help with all of your ISSPRO gauge and instrumentation questions. With many years of combined experience across all of our gauge lines, you can feel confident you’re getting expert advice on all of your technical needs.
For tech support with our standard line of gauges and instrumentation, Don Wendlick can be reached at 800-888-8065, EXT 3402.


Our newest generation of Enhanced Visibility gauges, EV3, are now available! These gauges are built in house, in our factory in Portland, OR. These gauges feature multicolored LED's for customizable backlighting and pointer colors, as well as a blue tooth chip on the board for easy programming through our free EV3 attribute programming app, available for download in the Apple App store and the Google Play Store.
Like our other EV² gauges, these gauges are sold as complete kits, with everything needed for installation included in the gauge kit. I.e. sensor, bracket, wiring harness, etc.
You can view the entire selection of EV3 gauges on our website now! Give us a call or send an email if you have any questions or need more information on these new gauges!

EV² Multi-Gauges

Check out our new selection of EV² mutli-gauges. These gauges are 3 3/8″ diameter gauges sold with everything you will need for in dash installation (brackets, sensors, wiring harnesses, etc.) All EV² multi-gauges have built in warning lights as well as multicolored LED’s on the circuit board for custom programming of the backlighting and pointer colors.*

*Part number R82010 attribute programmer required for warning light and backlight customization. Sold separately*


EV² Mechanical Pressure Gauges

ISSPRO Inc. We know MORE than Diesel

Check out new ISSPRO AFR gauge, RS11224, available now!
2 1/16" AIR FUEL RATIO 9-21 * Includes wideband sensor, wideband sensor controller, wiring harnesses for installation, and a programming cable to adjust gauge settings if desired.