Car Circuit Pen Tester Test Fuse Tool Auto Probe Light Fit 6V 12V 24V DC Voltage
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Always the correct part
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In-House Experts
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Item specifics
Car Circuit Pen Tester Test Fuse Tool Auto Probe Light Fit 6V 12V 24V DC Voltage
Product Overview
Modern vehicles rely on complex electrical systems that power everything from headlights to engine control modules. When a circuit fails, tracing the problem can be frustrating without the right tool. The AUXITO Digital Electric Voltage Circuit Tester is a professional-grade diagnostic pen designed to quickly pinpoint faults in 6V, 12V, and 24V DC systems. Whether you're dealing with a dead taillight, a faulty fuse, or a shorted wire, this tester gives you clear, accurate readings so you can get back on the road with confidence.
Unlike traditional test lights that can damage sensitive computer modules, the AUXITO tester uses a microcurrent LED circuit board that is safe for modern automotive ECUs. The bright digital LED display shows voltage readings with 0.1V resolution and 0.3V accuracy, day or night. Its bidirectional design allows you to connect the alligator clip to either positive or negative ground, with built-in polarity indication — red for positive, green for negative. This versatile tool is built tough with an insulated ABS body and a sharp stainless steel probe protected by a rubber tip.
Whether you’re a professional mechanic or a DIY enthusiast, this circuit tester simplifies electrical diagnostics on passenger cars, motorcycles, ATVs, and even heavy-duty commercial vehicles. The 96-inch flexible PU spring wire retracts easily for storage and resists tangles. With its wide 2.6–32V DC range and rugged construction, the AUXITO SXDB-3-24V is the dependable choice for troubleshooting circuits, testing fuses, and verifying connections — all without breaking the bank.
Key Features & Benefits
Product Specifications
Vehicle Fitment & Compatibility
Passenger Vehicles
Motorcycles & ATVs
Heavy-Duty / Commercial
Installation Guide
Difficulty: Easy — no special skills required. Time: Less than 5 minutes. Tools Needed: None (just the tester and the vehicle). This guide assumes basic knowledge of your vehicle’s electrical system. Always disconnect the battery if working near sensitive components.
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Will this item fit your vehicle?
To ensure You order the correct part for your car's particular make and model, please pay careful attention to the Item Specifics and Description.If You are not sure about what exactly You need - feel free to contact Us every working day (except on weekend) and get professional assistance within 24 hours - that way You will get the right part and do not need to deal with returns - save your time!
If you are not 100% delighted with your purchase, US85 will gladly accept your return within 30 days if your warranty permits. Please contact our Customer Service team to obtain an RMA (Return Merchandise Authorization) within 30-days of your purchase. To ensure a speedy return, all returned items require an RMA. Items without an RMA may be delayed or returned to the sender.
Return Process
To return merchandise, please use one of the following methods:
Within 30 Days of Purchase
Please contact our Customer Service team to obtain a Pre-Paid Return Label within 30 days of your purchase. No postage is required for your shipment with this label. A return shipping charge will be deducted from your refund on returns of items that are not the result of a US85.com error.
Upon receiving, your return will be processed within 2-3 business days. You will receive a notification when your return has been processed.
After 30 Days of Purchase
If your purchase date is over 30 days and you are still not satisfied with your purchase, you will need to use your own shipping methods to return the item. US85 does not provide a pre-paid return label for returns over 60 days. We are unable to offer refunds on purchases over 30 days old.
Please allow approximately 2-3 business days for processing. You will receive a notification when your return has been processed.
Refund Process
For your safety, we will issue a refund to the card that was used to pay for your purchase. Normally it takes about 2-3 business days after we receive the package for your return to be processed. If you paid with store credit, that credit will be put back on your US85 account. There is no restocking fee applied to any returned goods. We will do our best to keep you informed throughout the process via email. If you have any questions please don’t hesitate to give us a call at (650) 267-4452