--- product_id: 145288709 title: "allsun Professional Automotive Circuit Tester,Short Circuit Finder with Buzzer Alarm & LED Light, 6-24V Power Detector Probe with Overload Protection, 5m Cable for Car DIY Repair" brand: "allsun" price: "€ 57.71" currency: EUR in_stock: true reviews_count: 13 category: "Allsun" url: https://www.desertcart.hr/products/145288709-allsun-professional-automotive-circuit-tester-short-circuit-finder-with-buzzer store_origin: HR region: Croatia --- # 8A built-in overload protection 5m extra-long cable 6-24V wide voltage range allsun Professional Automotive Circuit Tester,Short Circuit Finder with Buzzer Alarm & LED Light, 6-24V Power Detector Probe with Overload Protection, 5m Cable for Car DIY Repair **Brand:** allsun **Price:** € 57.71 **Availability:** ✅ In Stock ## Summary > ⚡ Diagnose, power, and fix like a pro—never miss a beat under the hood! ## Quick Answers - **What is this?** allsun Professional Automotive Circuit Tester,Short Circuit Finder with Buzzer Alarm & LED Light, 6-24V Power Detector Probe with Overload Protection, 5m Cable for Car DIY Repair by allsun - **How much does it cost?** € 57.71 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/145288709-allsun-professional-automotive-circuit-tester-short-circuit-finder-with-buzzer) ## Best For - allsun enthusiasts ## Why This Product - Trusted allsun brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Safe Component Activation:** Power fuel pumps, motors, and solenoids directly from the probe tip—your remote power switch for diagnostics. - • **Built-In Overload Protection:** 8A circuit breaker prevents damage to your tester and vehicle ECU, so you can troubleshoot worry-free. - • **Extended Reach for Tough Spots:** 5-meter cable plus auxiliary ground lead lets you access hard-to-reach areas under the hood with ease. - • **Instant Short Circuit Detection:** Pinpoint hidden shorts in seconds with buzzer & LED alerts—no more guesswork or blown fuses. - • **Accurate Polarity Identification:** Red/Green LEDs instantly show positive or negative circuits, safeguarding your vehicle’s electronics. ## Overview The allsun Professional Automotive Circuit Tester is a versatile 6-24V diagnostic tool featuring instant short circuit detection with buzzer and LED indicators, accurate polarity testing, and safe component activation. Its 5-meter cable and built-in 8A overload protection make it ideal for DIY car repairs, marine applications, and complex electrical troubleshooting, empowering professionals and enthusiasts to save time and avoid costly mistakes. ## Description allsun Professional Automotive Circuit Tester,Short Circuit Finder with Buzzer Alarm & LED Light, 6-24V Power Detector Probe with Overload Protection, 5m Cable for Car DIY Repair - desertcart.com Review: Great tester for Marine use - If you have a boat, at some point you'll need to make repairs yourself as the cost of marine repairs is high. Many issues onboard are pumps and motors that fail. Sometimes its the part and sometimes its an electrical connection. This tool easily helps you determine quickly which of these it is. The wire length is perfect for my application and I can see exactly how many volts my equipment is receiving. Review: This made troubleshooting a car restoration much easier - The car i was working on had its harness removed when i got it so I needed to literally hook every thing back together including reparing several broke wires, connectors, and shorts. I thought this was cheap enough to get but wasnt sure it would be used more than my multimeter. It made testing so much easier. knowing wether something was hot or not and able to inject power into a circuit to make sure the load was connected properly made this job so much simpler. The cable is long enough i could crawl underneath the vehicle. and its never got disconnected from the battery no mater how much wiggling around I did. The tip could scrape through corrosion to make a solid connection and if I put power into the wrong circuit, it has a audible alert and circuit breaker that would reset after a few seconds. It could power any load on the vehicle even the starter for a the few moments i needed to verify it. Great product. Have no real criticism. possibly wish it had a audible tone when probing. ## Features - 【INSTANT SHORT CIRCUIT FINDER】 Stop guessing and start fixing! Our tester locates hidden shorts and bad grounds in seconds with a loud buzzer alarm and clear LED indicators, saving you hours of frustrating diagnostic work. (No more blown fuses!) - 【QUICK & ACCURATE POLARITY TEST】 Avoid costly mistakes! The Red/Green LED light instantly identifies positive (+) and negative (-) circuits. Ensure perfect connections every time, protecting your vehicle's sensitive electronics. - 【ACTIVATE COMPONENTS SAFELY】 Troubleshoot with power! Safely energize fuel pumps, lights, solenoids, and motors directly from the probe's tip. It's like having a remote power switch in your hand. - 【BUILT-IN OVERLOAD PROTECTION】 Work with confidence. Our built-in 8A circuit breaker automatically disconnects to prevent damage to your vehicle's ECU or the tester itself, even if you make a mistake. - 【LONG REACH & COMPLETE KIT】 Reach anywhere under the hood. The extra-long 5-meter (16.4ft) cable and included auxiliary ground lead give you everything you need to tackle electrical problems in cars. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07RWH5JB6 | | Best Sellers Rank | #229,067 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #300 in Circuit Testers | | Brand Name | allsun | | Color | Black | | Customer Reviews | 4.5 4.5 out of 5 stars (2,294) | | Item Dimensions | 10.79 x 2.09 x 1.65 inches | | Item Weight | 350 Grams | | Manufacturer | allsun | | Measurement Type | Voltmeter | | Minimum Operating Voltage | 6 Volts (DC) | | Model | EM285 | | Power Source | Battery Powered,electric | | Style Name | continuity tester automotive | | UPC | 687551089540 | | Unit Count | 1 Count | ## Product Details - **Brand:** allsun - **Color:** Black - **Item Weight:** 350 Grams - **Power Source:** Battery Powered,electric - **Style:** continuity tester automotive ## Images ![allsun Professional Automotive Circuit Tester,Short Circuit Finder with Buzzer Alarm & LED Light, 6-24V Power Detector Probe with Overload Protection, 5m Cable for Car DIY Repair - Image 1](https://m.media-amazon.com/images/I/617mJo5oNyL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: Does this work to find where the short is or just tells you what wire is shorting out** A: The power probe circuit tester has short-circuit protected and can test for bad ground contacts instantly. It allows you to follow and locate short circuits. **Q: Does the EM285 come with a power port (cigarette lighter) connector?** A: No, it does not. Please note that the tester can deliver or sink up to 8A. That is a lot for a cigarette lighter adapter. **Q: Where is this product manufactured?** A: We are manufacturer, from China. **Q: Does it come with the probe?** A: Hi Yes, the pen probe tester come with the probe. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great tester for Marine use *by E***B on October 27, 2025* If you have a boat, at some point you'll need to make repairs yourself as the cost of marine repairs is high. Many issues onboard are pumps and motors that fail. Sometimes its the part and sometimes its an electrical connection. This tool easily helps you determine quickly which of these it is. The wire length is perfect for my application and I can see exactly how many volts my equipment is receiving. ### ⭐⭐⭐⭐⭐ This made troubleshooting a car restoration much easier *by W***S on November 16, 2022* The car i was working on had its harness removed when i got it so I needed to literally hook every thing back together including reparing several broke wires, connectors, and shorts. I thought this was cheap enough to get but wasnt sure it would be used more than my multimeter. It made testing so much easier. knowing wether something was hot or not and able to inject power into a circuit to make sure the load was connected properly made this job so much simpler. The cable is long enough i could crawl underneath the vehicle. and its never got disconnected from the battery no mater how much wiggling around I did. The tip could scrape through corrosion to make a solid connection and if I put power into the wrong circuit, it has a audible alert and circuit breaker that would reset after a few seconds. It could power any load on the vehicle even the starter for a the few moments i needed to verify it. Great product. Have no real criticism. possibly wish it had a audible tone when probing. ### ⭐⭐⭐⭐⭐ Great value for a DIYer *by J***T on September 30, 2021* As a weekend DIYer, a tool where I can provide power and ground to diagnose electrical issues would be nice to have. I’ve searched and came across this tool from Allsun, the reviews I saw gave me the confidence to try it myself. The tool did its job and the money I would have spent to have a shop diagnose it, easily pays for itself. I’m glad there is a product in this price range for us DIYer and even entry technician that is on a budget. Looking forward to other products Allsun has to offer. ## Frequently Bought Together - allsun 6-24Vdc Auto Power Circuit Probe Tester,Power Circuit Detector Electric Test Tool Kit Pen,Short Circuit Finder Test Light Continuity/Polarity of a Voltage,Test Lead 5M(16Ft) Light & Buzzer - allsun em415Pro Automotive Circuit Tester,Short Open Finder Electrical Wire Breaker Tracker,Broken Wire Detector Tool,Cable Fault Locator with Bendable Receiver Probe, DC 6-42V - GTC063 Fuse Socket Connector Kit by GTC, General Technologies Corp --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.hr/products/145288709-allsun-professional-automotive-circuit-tester-short-circuit-finder-with-buzzer](https://www.desertcart.hr/products/145288709-allsun-professional-automotive-circuit-tester-short-circuit-finder-with-buzzer) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-07-17*