2-in-1 FOXWELL NT301 Plus OBD2 Scanner with 12V Battery Tester, Check Engine Light Code Reader, Car Battery/Starter/Charging System Test, Live Data Diagnostic Tool for 1996+ OBDII Vehicles

About This

• Why Buy Two Tools When the NT301 Plus Can Do Both? — Upgraded from the NT301, the NT301 Plus combines an OBD2 code reader and 12V battery tester in one tool. Quick pre-drive checks engine codes, battery health, and starting or charging system issues before unexpected issues affect your drive. With a 36% larger 2.8” color display (vs. 2.4”), it delivers clearer results every time. Ideal for DIYers, car owners, home mechanics, used car inspection and anyone who wants to diagnose car issues with confidence before making a costly shop visit. A 2-in-1 diagnostic tool that’s pays for itself after just one use
• Check Battery Health Before It Interrupts Your Day — Reduce no-start situations on the road and don’t wait until your car won’t start. This car battery tester provides a professional-grade battery health, starting power or charging system check. Test your battery before daily commuting, road trips, after a jump-start, new battery keeps dying or vehicle sitting for weeks. Know whether to recharge, replace, or keep using your battery to avoid unnecessary battery replacement. Fully works with 12V lead-acid batteries: Flooded, AGM (flat/spiral), EFB, and GEL. Tips: Connect the battery cable firmly to the OBDII diagnostic cable to start battery check
• Check Engine Light on? Fix it Yourself — Plug it in and it quickly displays the cause of your check engine light. This user-friendly code reader for cars and trucks comes with a built-in DTC Lookup library that explains each code in plain English. It tells you what's wrong and whether you can fix it yourself or not. Access live data like RPM, coolant temp, and fuel trim to pinpoint the problem. Saved money from taking it to the shop and spending over hundreds to figure out the reason. Pro Tip: You should fix the car issue before clearing the codes
• Pass Your S-M-O-G Check & Find EVAP Leaks — One press starts the I/M readiness test with this car scanner diagnostic tool to check state emissions readiness, drive cycle verification and see if your car is inspection-ready. The built-in LEDs and optional beeping, instantly give you pass/fail status. Plus, this car scanner also allow you to run an EVAP system test to detect if fuel system leaks — whether it's just a loose gas cap or a cracked hose
• Live Data + Record & Playback for Deeper Insight — This car diagnostics scanner monitors real-time engine parameters to catch intermittent issues: RPM, sensor outputs, fuel trim, and more. The obd scanner supports data recording, playback, and PC printing of diagnostic reports—ideal for professional repairs faster and easier
• Improtant Notes: FOXWELL NT301 Plus is an odb2 scanner for engine & 12V battery diagnostics only. It does not support ABS, SRS, transmission, key programming, oil reset, or battery registration. Not compatible with tire sensors or airbag codes. Works with 12 V batteries only, no load test, and no built-in battery. Fix car issues before clearing codes. Windows-only updates (not Mac/iOS)

Overview

• Brand : FOXWELL
• Power Source : Corded Electric
• Operating System : Plug and Play; Only support update with Windows system, not support MAC/IOS; 12V Battery Test Only
• Screen Size : 2.8 Inches
• Don’t Just Read Codes—Check Battery Health Too. Before Problems Interrupt Your Day, Check Engine Codes + Battery Health in One Tool.
• FOXWELL adheres to the principle of " product-oriented, customer-centered ".
• For thirteen years, we have been committed to creating OBD2 products that can truly solve problems quickly . With a professional R&D team and an independent innovative R&D system , we have been focusing on the development and provision of automotive diagnostic technologies, products and services.
• Our vision is " creating a better life experience for global car users ".
• Not Just for When Something Goes Wrong. Your battery will never warn you before it dies. Use the 2-in-1 NT301 Plus car scanner with battery tester for quick pre-drive checks to spot engine code, battery, starter, or charging issues before they interrupt your day. Keep your car always road-ready!
• Plug it in and it quickly displays the cause of your check engine light. Tells you what's wrong and whether you can fix it yourself or not . Saved money from taking it to the shop and spending over hundreds to figure out the reason. Pro Tip: You should fix the car issue before clearing the codes.
• Detecting the potential battery failures early, prevent unexpected roadside breakdowns, and save money by avoiding costly, unnecessary repairs . This battery tester automotive delivers full-scope testing— Battery Health Test , Starting Power Test , and Charging System/Alternator Test. When your car won’t start, after a jump-start, or before a long drive — test first, then decide what to do next.
• View engine RPM, sensor outputs, fuel trim, DTC triggers , and more in real time with clear, easy-to-read graphs that make diagnostics instantly understandable. With data print function, this code reader for car lets you easily save, share, or review your data—perfect for tracking issues, getting a second opinion, or keeping maintenance records organized.
• Press the “I/M” button for an instant readiness check and immediately see whether your vehicle is prepared for an e-missions test—no guesswork, no hassle. This OBD scanner with battery testing is built for everyday drivers, offering clear guidance and quick results that boost your confidence before any inspection. Even beginners can use it with ease, helping you spot issues early, avoid unexpected repairs, and keep your car running at its best.
• Will this work on older cars?
• Is the FOXWELL NT301 Plus just a basic code reader?
• No. The NT301 Plus is a 2-in-1 OBD2 code reader and 12V battery tester combo. It reads and clears engine codes, diagnoses check engine light issues, and also checks battery health, starter performance, and charging system status in one auto scanner.
• Is this easy to use for someone who's not a mechanic?
• Yes — thousands of people use it. The large screen walks you through every step, and you can do the diagnostic jods at home without a mechanic. Save hundreds on repairs. No phone pairing, app download, or subscription is needed.
• How is the display and usability better than other 2-in-1 automotive obd-ii scanner diagnostic tool?