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OBD2 Scanner

ProScan ELM327 Bluetooth v2.1

★★★★★ (128)
$29.99
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Code Reader

AutoDiag Pro LCD Code Reader

★★★★★ (84)
$49.99 $64.99

Multimeter

VoltCheck Digital Multimeter

★★★★☆ (56)
$34.99
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Performance Monitor

Live Data Stream OBD2 Adapter

★★★★★ (203)
$39.99 $59.99
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Battery Tester

Battery & Alternator Load Tester

★★★★☆ (41)
$24.99
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Oscilloscope

AutoScope Mini Waveform Analyzer

★★★★★ (29)
$129.99
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How to Diagnose Like a Pro

Follow these 4 steps to read, interpret, and fix vehicle issues using your new diagnostic tool.

1

Locate OBD2 Port

Usually found under the dashboard near the driver's knee. Turn the ignition to 'ON' but don't start the engine.

2

Connect & Power On

Plug your scanner into the port. Wait for the handshake with the vehicle's ECU to complete.

3

Read Live Data

View stored DTCs (Diagnostic Trouble Codes), clear codes, or monitor live sensor streams.

4

Cross-Reference & Fix

Use our built-in code database to understand the root cause and follow step-by-step repair guides.

Frequently Asked Questions

Everything you need to know about our diagnostic tools and compatibility.

Are these scanners compatible with all vehicles?
Our standard OBD2 scanners work with all 1996+ US-made and 2001+ European-made gasoline and diesel vehicles. Heavy-duty trucks (2003+) and hybrid/EV systems may require our Pro Series adapters for full protocol support.
Do I need an app to use the Bluetooth scanners?
Yes, we provide a free companion app (iOS & Android) that supports live data streaming, freeze frame analysis, and I/M readiness tests. You can also use third-party apps like Torque Pro or Car Scanner.
What if my check engine light keeps coming back?
A recurring code usually indicates a deeper mechanical or electrical issue. Clearing the code without fixing the root cause won't work. Check our DIY guide library for symptom-specific troubleshooting paths.
What is your warranty policy?
All diagnostic tools come with a 2-year manufacturer warranty covering defects and firmware issues. We also offer lifetime firmware updates for Pro Series devices.

Not sure which tool fits your build?

Talk to a real mechanic. Get personalized recommendations based on your vehicle, skill level, and project goals.

Chat with an Expert Check Vehicle Compatibility
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