2-in-1 Automotive Electrical Diagnostic Tool
2-in-1 Automotive Electrical Diagnostic Tool
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Stop Guessing Which Circuit Is Causing the Problem
A battery that goes flat overnight or a fuse that repeatedly blows can turn a simple repair into hours of trial and error. This automotive current tester connects at the fuse position and displays the live DC current of that individual circuit, helping you narrow the search without cutting or stripping wires.
Its clear blue-backlit LCD and built-in front light make readings easy to see in engine bays, under dashboards, and in other poorly lit work areas.
Key Technical Specifications
| Product Type | 2-in-1 automotive circuit and fuse current tester |
|---|---|
| Measuring Range | 0.01A–19.99A DC |
| Current Accuracy | ±2% |
| Maximum Load | 20A / 48V DC for no more than 10 seconds |
| Display | Blue-backlit LCD |
| Work Light | Built-in front LED light |
| Housing Material | ABS/PC with rubberized non-slip exterior |
| Fuse Connection | Standard blade-fuse plug with small-fuse adapter |
| Main Unit Size | Approx. 110 × 45 × 30 mm |
| Cable Length | Approx. 66 cm / 25.98 in |
| Power Supply | 1 × 23A 12V battery |
| Color |
Blue and black |
How It Works
Package Includes
- 1 × automotive current tester
- 1 × inline standard blade-fuse plug and fuse holder
- 1 × small blade-fuse adapter
- 1 × user instructions, depending on supplier package
Battery inclusion, supplied fuse rating, package contents, and manual language may vary by production batch. Confirm your physical inventory before publishing.
Frequently Asked Questions
Can it help find a parasitic battery drain?
Yes. It measures current in one fuse-protected circuit at a time, helping you compare circuits and narrow down abnormal standby current. Allow the vehicle’s modules to enter sleep mode before evaluating a standby-current reading.
Is this a dedicated 4-pin or 5-pin relay analyzer?
No. It measures current through a fuse-protected circuit and can support relay-circuit diagnosis, but it does not replace a dedicated relay analyzer with a 4-pin or 5-pin test socket.
Can it stay connected at 20A?
No. 20A/48V DC is the maximum load rating. At the maximum rating, testing must not exceed 10 seconds.
Does it work on every vehicle?
Compatibility depends on the vehicle’s low-voltage DC system, fuse style, and circuit rating. Confirm the fuse connection and electrical rating before use.
Important Safety Information
- For low-voltage automotive DC fuse-circuit current measurement only.
- Do not exceed 20A/48V DC or 10 seconds at the maximum load.
- Switch off the ignition before connecting or disconnecting the tester.
- Always retain and correctly install the vehicle fuse of the proper rating.
- Not for AC mains or EV high-voltage traction-battery circuits.
- Keep the tester dry and do not use it in wet conditions.
