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Your membership includes the OTR Link 2 professional diagnostic adapter, full access to our iOS and Android mobile apps, unlimited dealer-level diagnostics across all your trucks, OTR Cloud access where all your data is stored so you can reference it later, continuous software updates with new features added regularly, and tech support from our unbiased truck support team.

We're ready to help you with whatever questions come your way. We are on your side.

The mobile app connects to your adapter via Bluetooth, giving you complete control right from your phone or tablet, wherever you are.

The OTR Guarantee:
A single dealer or shop visit can cost over $500 and waste a full day. Avoid just one and your membership more than pays for itself. If OTR Pro does not deliver the value we promise, we will refund your membership in full within 60 days. Simple. Risk free.

Beyond just reading codes, you get full dealer-level capabilities:

• Force DPF regenerations on demand
• Reading fault codes, including OEM P codes, all at the OEM level.
• Reset Fault Codes. This reset is the same as OEM diagnostic software.
• Reset aftertreatment systems, such as resetting 5mph derates, replacing your DPF Filter, and NOx sensors.
• Monitor live engine data in real time
• Run SCR performance tests
• Track your complete diagnostic history in the cloud

You're getting the same capability of commands that the dealers use, right on your phone.

We have a fleet of test trucks here at OTR to ensure everything we do is tested and thoroughly vetted to ensure everything works the first time.

Unlike basic code readers, OTR provides true dealer-level access with the ability to run commands like forced regens, scr regens, reset dpf, and more.

Your membership covers ALL engine brands with one tool (not just one manufacturer), includes continuous updates as truck technology changes, stores all your data securely in the cloud, and works perfectly on your existing phone or tablet. No expensive laptop needed.

Your membership continues smoothly, keeping all your features, data, and benefits active. You can choose annual renewal or switch to monthly payments after year one.

Your diagnostic history stays saved forever in the cloud, even if you pause your membership. The hardware remains yours, and you can reactivate anytime to access all your historical data.

Order today and receive your hardware in 2 to 5 business days. Setup takes less than 5 minutes:

1. Download the OTR Diagnostics app from the Apple App Store or Google Play Store
2. Plug the adapter into your truck's diagnostic port
3. Connect via Bluetooth through the app
4. Start diagnosing immediately

No training needed. If you can use a smartphone, you can use OTR. Most members run their first diagnostic within minutes of unboxing.

Because it delivers on its promise: total control over your maintenance, 24/7.

Our members never worry about surprise breakdowns, expensive diagnostic fees, or being sold unnecessary repairs. When you're broken down at 2 AM, you'll understand why so many drivers won't run without it.

With lifetime hardware protection, if your adapter ever fails while you're an active member, we'll replace it free. That's our commitment to keeping you on the road.