Skip to product information
1 of 9

TopDiag T300PRO Car Code Reader & 12V/24V Battery Tester, Automotive Scan Tool for Check Engine Light, Live Data, and Car Battery Health Analyzer for DIYer

TopDiag T300PRO Car Code Reader & 12V/24V Battery Tester, Automotive Scan Tool for Check Engine Light, Live Data, and Car Battery Health Analyzer for DIYer

Quantity
Regular price $61.98
Regular price Sale price $61.98
Sale Sold out
  • 24/7 Customer Support
  • Risk-Free 30-Day Returns
  • Fast & Reliable U.S. Shipping

30-Day Hassle-Free Returns

Not satisfied? Return your order within 30 days for a full refund or exchange — simple and easy.

✔ Easy return process

✔ Fast refunds

✔ No hidden conditions

Fast U.S. Shipping

We ship within the United States only — no international delays.

✔ Processing time: 1–2 business days

✔ Delivery time: 3–7 business days

✔ Real-time tracking available

👉 Track your order anytime from the header via Track Order

About This

  • 2-in-1 Professional Tool for Engine Codes and Battery Health: The T300PRO combines a full-featured OBD2 scanner diagnostic tool with a professional 12V/24V battery tester. This all-in-one car scanner diagnostic tool lets you quickly read and clear check engine codes, while simultaneously performing deep-dive analysis on your vehicle's battery health, starter, and charging system. Solve the two most common car problems with one device, saving you time, money, and the hassle of buying separate tools
  • Check Engine Light Diagnosis and Live Data Reading: The T300PRO car code reader instantly identifies problems when the warning light turns on. It reads and clears diagnostic trouble codes, provides clear definitions, and displays real-time live data and freeze frame information. Understand exactly what triggered the check engine code reader-whether it's a sensor issue or an emissions fault-before visiting a repair shop
  • Comprehensive Battery, Starter and Alternator Testing: Our advanced car diagnostic scanner performs a comprehensive battery system test, accurately measuring battery health (CCA, voltage, internal resistance), cranking system performance, and alternator charging output. Pinpoint the exact cause-be it a weak battery, failing starter, or bad alternator-to avoid unnecessary parts replacements and repair bills
  • Wide Compatibility and Plug-and-Play Simplicity: This diagnostic scanner works with most OBD2-compliant cars, trucks, SUVs, and motorcycles (post-1996 US, 2000 EU, 2005 Asia). It's a true plug-and-play device-no batteries, apps, or setup required. Simply connect it to your car's OBDII port, and it powers on instantly. The intuitive menu and support for multiple languages (including Spanish, as an escaner automotriz) make it easy for anyone to use, from beginners to professionals
  • Smog Check Preparation and I/M Readiness Monitor: The T300PRO OBD2 scanner features a dedicated I/M Readiness Monitor to check your vehicle's smog test status. Ensure all monitors are Ready before you go, saving you from re-test fees and delays. Use vehicle code reader for regular vehicle health check-ups, view live sensor data, and maintain your car in peak condition, making it a wise long-term investment for every car owner
  • Professional-Grade Diagnostic Accuracy for DIYers and Home Mechanics: The T300PRO code reader delivers fast, reliable code reading and battery testing with high precision. Its clear, color screen shows easy-to-understand results, graphs live data, and stores freeze frames. It's an essential scan tool for every home garage, empowering you to understand and fix common car issues yourself without specialized knowledge
  • All-in-One Value for Tools and Repairs: The T300PRO combines both code reader and battery tester functionality in one device. It's a cost-effective solution that helps you diagnose engine faults, assess battery and charging system health, and prepare for smog tests. With lifetime free updates and robust construction, it's designed for long-term reliability. Take control of your vehicle's health, reduce dependency on mechanics, and enjoy confidence on every drive with this versatile vehicle code reader and analyzer

Overview

  • Brand : TopDiag
  • Power Source : Corded Electric
  • Product Dimensions : 7.48"L x 6.29"W x 2.04"H
  • Operating System : Linux
  • Screen Size : 1.7 Inches
View full details
Free Shipping
Free Shipping on Orders Over $50
Easy Returns
30-Day Hassle-Free Returns
Secure Payment
Secure & Encrypted Checkout
Customer Support
24/7 Customer Support

WE HELP DRIVERS UPGRADE EVERY MILE

history_edu   ━━ About CarSupplyPilot
CarSupplyPilot brings together premium car supplies, detailing products, interior upgrades, LED lighting, truck accessories, dash cams, and smart driving essentials in one easy place.
From daily commuters to truck owners, family drivers, pet owners, and weekend detailers, we help U.S. drivers find practical automotive accessories built for cleaner, safer, and smarter driving.
10k+ DRIVERS SERVED
100+ CAR ESSENTIALS
Best-Selling Car Categories
Car Cleaning 
Detailing Supplies
Car Electronics
LED Car Lights
Truck | Off-Road 
Car Interior 

Trusted By Everyday Drivers

help_outline   ━━ WHY DRIVERS CHOOSE US

Premium car accessories trusted by U.S. drivers for cleaner safer smarter everyday driving.

50K+

PRODUCTS SOLD

93%

Positive Customer Reviews

10,000+

Verified Customer Reviews

30DAY

EASY RETURNS

TRANSFORM YOUR VEHICLE

compare   ━━ Before | After Upgrade
Premium car accessories detailing supplies LED lighting and truck upgrades help turn ordinary vehicles into cleaner sharper and more impressive daily drivers.
Vehicle Appearance Upgrade92 %
Interior Comfort Improvement 88 %
IInstallation Support Satisfaction 90 %

Car Care Questions

🚗 What Are The Best Car Cleaning Supplies For A Like-New Finish
remove
add

The best car cleaning setup starts with products that clean faster protect your paint and make your vehicle look professionally detailed at home. A quality car wash kit microfiber towels ceramic spray and interior cleaner help remove dirt road grime fingerprints and stains without damaging surfaces.

For the best results most drivers use ceramic spray coatings to keep paint shinier longer and wheel cleaners to break down brake dust more easily.

💡 Are LED Car Lights Really Better Than Standard Lights
remove
add

Yes. LED car lights give drivers brighter visibility cleaner styling and safer nighttime driving. Many drivers upgrade to LED headlights fog lights and interior LED kits because they last longer use less power and make vehicles look far more modern.

LED upgrades are especially popular for trucks SUVs and off-road vehicles where visibility matters most.

📹 Why Do So Many Drivers Use Dash Cams Now
remove
add

Dash cams help protect drivers during accidents parking incidents insurance claims and unexpected road situations. Many drivers now use front and rear dash cams with parking mode because recorded footage can help provide proof during disputes or hit-and-run situations.

Modern dash cams also offer night vision app connectivity and clearer 4K video quality for everyday driving.

🛻 What Truck Accessories Are Worth Buying First
remove
add

Most truck owners first upgrade accessories that improve storage protection and visibility. LED light bars truck bed organizers running boards all-weather floor mats and roof racks are some of the most useful upgrades for everyday driving work and outdoor activities.

These upgrades also help trucks look more aggressive and off-road ready.

📱 Are Wireless CarPlay Accessories Worth It
remove
add

Yes. Wireless CarPlay accessories help drivers use navigation music calls and apps more safely without constantly plugging in cables. Many drivers prefer wireless adapters magnetic phone mounts and fast chargers because they create a cleaner easier and more modern driving setup.

Long commutes and daily driving become much more convenient with wireless connectivity.

🧼 How Often Should You Detail Your Vehicle
remove
add

Keep your vehicle looking cleaner longer with a simple detailing routine. Use interior cleaners, microfiber towels, wheel cleaners, ceramic sprays, and detailing brushes to refresh high-touch areas, remove road grime, protect paint, and keep your car feeling new between full washes.

For a cleaner finish, focus on the areas that show dirt fastest: wheels, floor mats, dashboard, seats, glass, and exterior paint.

Smartphone with email subscription interface on a table with a cup of coffee and plant.

Unlock Exclusive Offers

Be the first to know about new collections and exclusive offers.

Subscribe Now