Proformance Diagnostics – Diesel Truck Diagnostic Tools. Premium heavy-duty diagnostic equipment for Cummins, Detroit Diesel, Paccar, Volvo, and Mack engines.

The Advanced Diagnostic Tool For Truck Drivers
More Than Just a Regen Tool

NOx Sensor Tester
Advanced Diagnostics
NOx Sensor Tester + Fast Testing + Save Time
Trusted by Over 500,000 Users Worldwide





















The Real Cost of Downtime
Become an Authorized Dealer
Join our network to grow your business. Partner with Proformance Diagnostics and gain access to innovative diagnostic solutions, dealer-only benefits, and ongoing support designed to help you expand your reach and increase revenue.

Find Your Use Case
Featured Articles & Latest News
All ArticlesBuyer's Guide
OTR Diagnostics vs Proformance Link
New Versions & Features
Proformance link:Update: New Versions & Features
Why Choose Proformance?
500K+ Global Users
30-Day Money-Back Guarantee
1-Year Limited Warranty
5.0 Google Rating
Lifetime Customer Support
Subscribe & Stay Updated.
Stay up to date with exclusive deals, news, and the latest updates — delivered straight to your inbox.
Ready to save thousands on repairs?
Every week you wait could cost you hundreds in unnecessary shop bills.
JOIN NOW →













