---
product_id: 145288709
title: "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: "R$406"
currency: BRL
in_stock: true
url: https://www.desertcart.com.br/products/145288709-professional-automotive-circuit-tester-short-circuit-finder-with-buzzer-alarm
store_origin: BR
region: Brazil
---

# Instant short circuit detection Built-in 8A overload protection Quick polarity identification 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:** R$406
**Availability:** ✅ In Stock

## Summary

> ⚡ Diagnose Like a Pro, Fix Like a Boss!

## Quick Answers

- **What is this?** 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?** R$406 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/products/145288709-professional-automotive-circuit-tester-short-circuit-finder-with-buzzer-alarm)

## 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

- • **Never Guess Polarity Again:** Red/Green LEDs ensure flawless positive/negative circuit detection every time.
- • **Power Up Components Safely:** Activate fuel pumps, lights, and motors directly from the probe tip with confidence.
- • **Pinpoint Hidden Shorts in Seconds:** Stop wasting time—locate faults instantly with buzzer and LED alerts.
- • **Reach Every Corner Under the Hood:** Extra-long 5m cable plus auxiliary ground lead for ultimate DIY flexibility.
- • **Protect Your Vehicle’s Electronics:** Automatic 8A circuit breaker guards against overloads and costly damage.

## Overview

The allsun Professional Automotive Circuit Tester is a precision 6-24V diagnostic tool designed for quick and safe automotive electrical troubleshooting. Featuring instant short circuit detection with buzzer and LED indicators, polarity testing with color-coded LEDs, and built-in 8A overload protection, it empowers DIY mechanics to efficiently identify and fix electrical faults. Its 5-meter cable and auxiliary ground lead provide extended reach, making it an essential tool for professional-grade car repairs.

## Description

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

## 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 |
|---------------|-------|
| Brand | allsun |
| Power Source | Battery Powered,electric |
| Style | continuity tester automotive |
| Color | Black |
| Item Weight | 350 Grams |
| Item dimensions L x W x H | 10.79 x 2.09 x 1.65 inches |
| Min. Operating Voltage | 6 Volts (DC) |
| Measurement Type | Voltmeter |
| UPC | 687551089540 |
| Manufacturer | allsun |
| Part Number | allsunEM285 |
| Item Weight | 12.3 ounces |
| Product Dimensions | 10.79 x 2.09 x 1.65 inches |
| Item model number | EM285 |
| Size | GMEM285 |
| Material | acrylonitrile_butadiene_styrene |
| Batteries Included? | No |
| Batteries Required? | No |

## Product Details

- **Brand:** allsun
- **Power Source:** Battery Powered,electric
- **Style:** continuity tester automotive
- **Color:** Black
- **Item Weight:** 350 Grams

## Images

![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)
![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 2](https://m.media-amazon.com/images/I/716vw84jJAL.jpg)
![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 3](https://m.media-amazon.com/images/I/61c2nk9is3L.jpg)
![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 4](https://m.media-amazon.com/images/I/61kPU47y0RL.jpg)
![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 5](https://m.media-amazon.com/images/I/61kTlwL6gIL.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.

## 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

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**Shop now:** [https://www.desertcart.com.br/products/145288709-professional-automotive-circuit-tester-short-circuit-finder-with-buzzer-alarm](https://www.desertcart.com.br/products/145288709-professional-automotive-circuit-tester-short-circuit-finder-with-buzzer-alarm)

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*Product available on Desertcart Brazil*
*Store origin: BR*
*Last updated: 2026-01-26*