CNBJ-611 Automotive Fuse Current Tester – Car Leak Analyzer

Diagnose Car Electrical Problems Fast with the CNBJ-611 Fuse Current Tester

Stop guessing when your car's electrical system acts up. The CNBJ-611 Automotive Fuse Current Tester is a professional-grade yet beginner-friendly tool that lets you pinpoint circuit faults, measure current draw, and detect parasitic battery drain — all with a clear LCD readout. Whether you're a weekend DIYer or a seasoned mechanic, this compact tester puts reliable diagnostics right in your hand.

Made in Mainland China.

Key Features

• High-Precision Current Measurement: Accurately measures standard current in both passenger cars and commercial vehicles, detecting even minute current changes to help you quickly identify circuit faults — no experience required.
• Blue Backlit LCD Display: The bright, high-contrast screen delivers clear data readings in both bright sunlight and low-light conditions, so you never miss a subtle current fluctuation.
• Built-In Work Light: An integrated headlight illuminates your fuse box or engine bay during nighttime or low-visibility maintenance, keeping you safe and efficient while you work.
• Wide Vehicle Compatibility: Works with a broad range of passenger cars, SUVs, pickups, and commercial trucks — one tool for all your circuit testing needs.
• Anti-Slip Ergonomic Body: Constructed from durable ABS/PC material with a rubber-coated grip, the CNBJ-611 provides a comfortable, fatigue-free hold even during extended diagnostic sessions.
• Long-Lasting Battery Power: Runs on a 23A battery for multiple tests on a single charge, minimizing downtime and the need for frequent replacements.
• Compact & Portable: Measuring just 10.1 × 4.5 × 3 cm (4.33 × 1.77 × 1.18 in), it fits easily in a glove box, toolbox, or pocket.

Specifications

What's in the Box?

• 1 × CNBJ-611 Car Current Detector / Fuse Current Tester

Pair It With These Related Products

• 10-Pack 22AWG Glass Tube Fuse Holder 5×20mm & 6×30mm Screw — Keep spare fuse holders on hand for quick replacements after testing.
• 100-Pack Disposable Nitrile Gloves – Latex-Free, White, Oil-Proof — Protect your hands during automotive electrical work.

Safe Electrical DIY: Learn More

For guidance on electrical safety and proper use of testing equipment, visit the OSHA Electrical Safety resource page — a trusted authority on safe electrical practices.

Frequently Asked Questions

Q: What types of vehicles is the CNBJ-611 automotive fuse current tester compatible with?

A: The CNBJ-611 is designed for a wide range of vehicles, including standard passenger cars, SUVs, light trucks, and heavy-duty commercial vehicles. It is ideal for testing 12V and 24V automotive electrical systems.

Q: Can I use this car leakage analyzer to find a parasitic battery drain?

A: Yes! The CNBJ-611 is specifically built to detect parasitic current draw — the small, unwanted current that can slowly drain your battery when the vehicle is off. Simply insert the tester in place of a fuse in the fuse box and it will display the current draw on the LCD screen, helping you identify which circuit is causing the drain.

Q: Does the fuse current tester require any special setup or training to use?

A: No complex setup is needed. The tester is designed for both professionals and beginners. Just insert it into the target fuse slot, read the value on the backlit LCD display, and compare it against your vehicle's specifications. The built-in headlight also makes working in dark engine bays much easier.

Q: What battery does the CNBJ-611 use and how long does it last?

A: The tester is powered by a 23A battery (included). It is engineered for long battery life, allowing multiple diagnostic sessions before a replacement is needed, making it a reliable tool for regular automotive maintenance.