Precision Current Measurement
This automotive circuit and fuse tester is designed for accurate current measurement in vehicle electrical systems. It provides real-time readings to help diagnose circuit issues quickly, while the clear digital display makes small current changes easier to detect during automotive diagnostics.
Portable Automotive Tester
Lightweight and compact, this car fuse current checker is easy to carry between vehicles, workshops, or roadside repair tasks. Its portable design makes it suitable for both DIY users and professional mechanics who need fast, convenient electrical testing.
Easy to Use for Blade Fuses
Remove the blade fuse from the circuit you want to test, insert it into the tester’s fuse socket, then plug the tester into the vehicle’s fuse slot. This helps maintain proper circuit protection while measuring current. Designed for standard blade fuse applications with a maximum load of 20A / 48V.
Durable & Workshop-Ready Design
Built for automotive environments, this blade fuse tester features a durable housing made from quality materials to resist impact, wear, and daily workshop use. The waterproof design adds extra protection against moisture, spills, and outdoor working conditions.
Important Usage Notes
This tester is for vehicle current measurement only. Do not exceed the maximum load: 20A / 48V for 10 seconds. Always turn off the vehicle ignition before connecting or disconnecting the tester. Battery included: 1 × 23A 12V battery.
FAQ
01 What is this automotive fuse current tester used for?
02 Can this tester help find why a fuse keeps blowing?
03 What fuse type is this tester designed for?
04 What is the maximum load rating?
05 Who should use this blade fuse current checker?
This product came quick , and package was clean and protected the product .
The tester works just as expected , it helped me check if any one of my relays was broken. I one of my light signals wasn’t working. After confirming the relay was bad . I just went to autozone and bought a new one. This is a cheap but very helpful tool to have in my garage’ toolbox
Does what it says on the tin -- plug the device into a space on your car's fuse panel, be sure to insert the correct fuse into the device's holder so you have overcurrent protection for the circuit you are testing, and then the meter sits in series with the circuit so you can read current flow. Direct, accurate and foolproof method for measuring current flow on an electrical circuit in a car. Seems accurate enough for my purposes.
There are plenty of scenarios where this is a very useful diagnostic capability. One scenario particularly useful to the average motorist is hunting down vampire loads. Do you have a somewhat older car whose battery drains down after sitting idle for only 4-5 days? Do you replace your car's battery every year or two even though a decent battery should last 5+ years? There is a good chance there is an unexpected vampire load on one of your circuits, drawing down the battery even when the car is off. For example, a faulty switch might keep your trunk light or glove box light on continuously, even when the lid is closed. You'd never even see it. Or a fault in your sound-system amplifier that causes a continuous current draw even when the radio appears off. This tool will help you isolate and diagnose such problems quickly and with certainty.
Works great
Nice
Does what it says on the tin -- plug the device into a space on your car's fuse panel, be sure to insert the correct fuse into the device's holder so you have overcurrent protection for the circuit you are testing, and then the meter sits in series with the circuit so you can read current flow. Direct, accurate and foolproof method for measuring current flow on an electrical circuit in a car. Seems accurate enough for my purposes.
There are plenty of scenarios where this is a very useful diagnostic capability. One scenario particularly useful to the average motorist is hunting down vampire loads. Do you have a somewhat older car whose battery drains down after sitting idle for only 4-5 days? Do you replace your car's battery every year or two even though a decent battery should last 5+ years? There is a good chance there is an unexpected vampire load on one of your circuits, drawing down the battery even when the car is off. For example, a faulty switch might keep your trunk light or glove box light on continuously, even when the lid is closed. You'd never even see it. Or a fault in your sound-system amplifier that causes a continuous current draw even when the radio appears off. This tool will help you isolate and diagnose such problems quickly and with certainty.
Works
Works great ..just in time
Que puedo decir más que satisfecho con esta herramienta la cual ha Sido útil al momento de usarla para el diagnóstico. Muy versátil y facil de usar además la calidad es indiscutible.
Work's as described
Nice little device. I bought it to help chase down a parasitic draw that was draining my battery on my truck.
This digital car fuse and circuit tester is a handy, reliable tool for quickly diagnosing electrical issues up to 48 volts. The clear digital display makes reading results easy, even in low light conditions. The built-in inline fuse adds an important layer of protection during testing, ensuring safety for both the tool and the vehicle. The included MicroFuse adapter expands compatibility, allowing me to test a wider variety of fuses without swapping tools. Compact and durable, it fits well in my mobile mechanic kit and has saved me time troubleshooting circuits on the go. Overall, it’s a practical and well-built device for anyone working with automotive electrical systems.
Why did you pick this product vs others?:
Looks good it's a gift
Haven't really used one thing it came without a battery and have to figure out what type of battery uses
i bought this circuit tester to troubleshoot a faulty headlight circuit in my car. It was incredibly easy to use — just clip the alligator clip to ground and start probing wire. love it
Works as intended. Cross checked the readings with a Fluke multimeter and there's a 0.1-0.3 discrepancy which is still good.
Works very well
I bought this fuse tester to make checking my car fuses easier, and it's been a game-changer. It's super easy to use, It's small enough to keep in the glove box, so I'm always ready to check a fuse if needed. Highly recommend it to any car owner!
I bought this fuse tester a few weeks ago, and I’m really happy with it. I tested a few fuses in my car, and it worked perfectly. The LED light is bright and easy to read, even in the dark.