OBD2 Scanner & Voltage Tester – Engine Fault Code Reader R100

Read & Clear Engine Codes in Seconds – OBD2 Diagnostic Scanner R100

Take control of your car's health with the R100 OBD2 Scanner & Voltage Tester. Whether your check engine light just came on or you want to keep tabs on your battery's charging status, this compact diagnostic tool gives you real-time insight right from your OBD2 port — no trip to the mechanic required. Compatible with most 1996 and newer petrol and diesel vehicles, the R100 is the go-to tool for DIY car owners and automotive enthusiasts alike.

Key Features

• Engine Fault Code Reader: Quickly reads and clears Diagnostic Trouble Codes (DTCs) to turn off your check engine light and identify issues before they become expensive repairs.
• Live Battery Voltage Testing: Instantly displays your vehicle's battery and charging system voltage so you can detect weak batteries or charging faults early.
• Charging System Diagnostics: Tests alternator output to ensure your car is charging properly while driving.
• Plug & Play – No App Required: Simply plug into your car's OBD2 port (usually under the dashboard) and get readings immediately — no Bluetooth, Wi-Fi, or smartphone needed.
• Compact & Portable: Lightweight design fits easily in your glove box for on-the-go diagnostics anytime, anywhere.
• Wide Vehicle Compatibility: Works with most OBD2-compliant cars, SUVs, and light trucks manufactured from 1996 onwards.

Why You Need an OBD2 Scanner

A check engine light can mean anything from a loose gas cap to a serious engine issue. Instead of guessing — or paying dealership diagnostic fees — the R100 lets you pinpoint the exact fault code in moments. Understanding your vehicle's diagnostics can save you time, money, and stress. Learn more about how on-board diagnostics work at NHTSA or explore automotive electrical system basics at EPA On-Board Diagnostics (OBD).

What's in the Box?

• 1 × R100 OBD2 Diagnostic Scanner & Voltage Tester

Note: Batteries are not required — the device is powered directly via the OBD2 port.

Compatible With

Most OBD2-compliant vehicles (1996+), including cars, SUVs, minivans, and light-duty trucks. Supports standard OBD2 protocols.

Made in Mainland China.

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Frequently Asked Questions

Q: What vehicles is the R100 OBD2 Scanner compatible with?

A: The R100 is compatible with most OBD2-compliant vehicles manufactured from 1996 onwards, including cars, SUVs, minivans, and light-duty trucks. It supports all standard OBD2 communication protocols.

Q: Do I need a smartphone or app to use this OBD2 scanner?

A: No. The R100 is a standalone plug-and-play device. Simply insert it into your vehicle's OBD2 port (typically located under the dashboard on the driver's side) and it will display diagnostic information directly — no Bluetooth, Wi-Fi, or smartphone app required.

Q: Can the R100 clear the check engine light?

A: Yes. In addition to reading Diagnostic Trouble Codes (DTCs), the R100 can clear fault codes and turn off your check engine light once the underlying issue has been addressed.

Q: What does the voltage tester function do?

A: The built-in voltage tester checks your car battery's voltage and monitors the charging system output from your alternator. This helps you identify a weak or failing battery and charging faults before they leave you stranded.

Q: Does the R100 require batteries?

A: No. The device is powered entirely through your vehicle's OBD2 port, so no separate batteries are needed.